ExcelBench Dashboard

Profile: xlsx · Platform: Darwin-arm64 · Excel: 16.105.3 · Date: 2026-10-03

Score rubric: 3 = all basic + edge pass; 2 = all basic pass with edge failures; 1 = at least one basic pass (not all); 0 = no basic pass.

🐺

WolfXL at a glance (maintained by SynthGL)

21/21 features scored 3 in read or write. Hybrid Rust+Python engine with an openpyxl-compatible API. View on GitHub →

Libraries Tested

Features Scored

53%

Avg Pass Rate

145/357

Score 3 Results

Perf Iterations

Delta Since Last Run

Fidelity score changes: 6 (improvements: 4, regressions: 2)
Median read throughput: +12%
Median write throughput: +28%

Library Strength Profiles

5-axis comparison: fidelity, read/write speed, feature coverage, and capability breadth. All axes normalised 0–100. Speed baseline: openpyxl = 50.

Score Matrix

Best of read/write. Hover for R/W breakdown.

Feature	openpyxl R+W	wolfxl R+W	aspose-cells-foss R+W	exceljs R+W	libreoffice R+W	xlsxwriter W	xlsxwriter-constmem W	sheetjs R+W	xlwt W	openpyxl-readonly R	pandas R+W	pyexcel R+W	pylightxl R+W	tablib R+W	python-calamine R	polars R	xlrd R
Tier 0 — Core
Cell Values	3	3	3	3	3	3	3	3	3	3	3	3	3	3	1	1	—
Formulas	3	3	3	3	3	3	3	3	0	3	3	3	3	3	0	0	—
Multiple Sheets	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	1	—
Tier 1 — Formatting
Alignment	3	3	1	3	3	1	1	0	3	0	0	0	0	0	0	0	—
Background Colors	3	3	3	3	3	3	3	3	1	0	0	0	0	0	0	0	—
Borders	3	3	1	3	3	3	3	0	1	0	0	0	0	0	0	0	—
Dimensions	3	3	3	3	3	3	1	3	1	0	0	0	0	0	0	0	—
Number Formats	3	3	3	3	1	3	3	3	3	0	0	0	0	0	0	0	—
Text Formatting	3	3	1	3	3	3	3	0	1	0	0	0	0	0	0	0	—
Tier 2 — Advanced
Comments	3	3	3	3	3	3	0	3	0	0	0	0	0	0	0	0	—
Cond. Formatting	3	3	3	2	2	3	3	0	0	0	0	0	0	0	0	0	—
Data Validation	3	3	3	3	3	3	3	0	0	0	0	0	0	0	0	0	—
Freeze Panes	3	3	3	3	3	3	3	0	0	0	0	0	0	0	0	0	—
Hyperlinks	3	3	3	2	0	3	3	3	0	0	0	0	0	0	0	0	—
Images	3	3	0	0	3	3	0	0	0	0	0	0	0	0	0	0	—
Merged Cells	3	3	3	3	3	3	3	3	0	0	0	0	0	0	0	0	—
Pivot Tables	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Tier 3 — Workbook Metadata
Named Ranges	3	3	3	2	3	0	0	3	0	0	0	0	0	0	0	0	—
Tables	3	3	1	3	3	0	0	0	0	0	0	0	0	0	0	0	—
Tier -1
chart_anchor	3	3	3	0	0	0	0	0	0	0	0	0	0	0	0	0	—
page_setup	3	3	1	0	1	0	0	0	0	0	0	0	0	0	0	0	—
sheet_protection	3	3	3	3	2	0	0	3	0	0	0	0	0	0	0	0	—

Fidelity vs. Throughput

By Feature Group

Per Feature

Heatmap

Library Comparison

Library	Caps	Modify	Version	Green	Pass Rate	Read cells/s	Raw Read cells/s	Write cells/s
openpyxl	R+W	Rewrite	3.1.5	21/21	100%	772	—	774
wolfxlRecommended	R+W	Patch	2.0.8	21/21	100%	1K	—	2K
aspose-cells-foss	R+W	Rewrite	26.7.0	15/21	80%	—	—	—
exceljs	R+W	Rewrite	4.4.0	15/21	89%	—	—	—
libreoffice	R+W	Rewrite	26.8.0.3 (build bce0998afefdbc355585ca324285661a2170ba77)	15/21	86%	—	—	—
xlsxwriter	W	No	3.2.9	15/21	84%	—	—	589
xlsxwriter-constmem	W	No	3.2.9	12/21	79%	—	—	577
sheetjs	R+W	Rewrite	0.20.3	11/21	40%	—	—	—
xlwt	W	No	1.3.0	4/21	54%	—	—	4K
openpyxl-readonly	R	No	3.1.5	3/21	20%	169	—	—
pandas	R+W	Rebuild	3.0.6	3/21	17%	563	—	635
pyexcel	R+W	Rebuild	0.7.6	3/21	11%	671	—	—
pylightxl	R+W	Rebuild	1.61	3/21	11%	759	—	—
tablib	R+W	Rebuild	3.10.0	3/21	18%	701	—	739
python-calamine	R	No	0.8.2	1/21	14%	2K	—	—
polars	R	No	1.44.2	0/21	13%	2K	—	—
xlrd	R	No	2.0.2	0/0	0%	—	—	—

Feature Details

Tier 0 — Core

Cell ValuesTier 017 libraries · 90% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	1	3	94%	—
wolfxl	3	3	100%	—
pylightxl	3	0	50%	Known limitation: pylightxl cell-values write has date/boolean/error fidelity limits due to writer encoding behavior.
pyexcel	3	0	50%	—
xlwt	—	3	100%	—
pandas	1	3	92%	—
xlsxwriter-constmem	—	3	100%	—
openpyxl-readonly	3	—	100%	—
tablib	3	3	100%	—
sheetjs	3	3	100%	—
exceljs	3	3	100%	—
libreoffice	1	3	94%	—
python-calamine	1	—	83%	Known limitation: python-calamine can surface formula error cells as blank values in current API responses.
polars	1	—	83%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

xlsxwriter — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	write	basic	✓	`42`	`42`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

aspose-cells-foss — 34/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✗	`2026-02-04`	`46057`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✗	`2026-02-04T10:30:45`	`46057.43802083333`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

wolfxl — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

pylightxl — 18/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	⊘	`Hello World`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	⊘	`日本語🎉émojis`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	⊘	`type=blank`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	⊘	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	⊘	`Line 1 Line 2 Line 3`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	⊘	`42`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	⊘	`3.14159265358979`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	⊘	`-100.5`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	⊘	`1234567890123456`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	⊘	`1.23e-10`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	⊘	`2026-02-04`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	⊘	`2026-02-04T10:30:45`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	⊘	`True`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	⊘	`False`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	⊘	`#DIV/0!`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	⊘	`#N/A`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	⊘	`#VALUE!`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	⊘	`type=blank`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`

pyexcel — 18/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	⊘	`Hello World`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	⊘	`日本語🎉émojis`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	⊘	`type=blank`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	⊘	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	⊘	`Line 1 Line 2 Line 3`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	⊘	`42`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	⊘	`3.14159265358979`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	⊘	`-100.5`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	⊘	`1234567890123456`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	⊘	`1.23e-10`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	⊘	`2026-02-04`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	⊘	`2026-02-04T10:30:45`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	⊘	`True`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	⊘	`False`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	⊘	`#DIV/0!`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	⊘	`#N/A`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	⊘	`#VALUE!`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	⊘	`type=blank`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`

xlwt — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	write	basic	✓	`42`	`42.0`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456.0`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

pandas — 33/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✗	`#DIV/0!`	`type=blank`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✗	`#N/A`	`type=blank`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✗	`#VALUE!`	`type=blank`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

xlsxwriter-constmem — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	write	basic	✓	`42`	`42`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

openpyxl-readonly — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`

tablib — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

sheetjs — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

exceljs — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

libreoffice — 34/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - simple	write	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - unicode	write	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - empty	write	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - long (1000 chars)	write	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
String - with newlines	write	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - integer	write	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - float	write	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - negative	write	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - large	write	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Number - scientific notation	write	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
Date - standard	write	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
DateTime - with time	write	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✗	`True`	`=TRUE()`
Boolean - TRUE	write	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✗	`False`	`=FALSE()`
Boolean - FALSE	write	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #DIV/0!	write	basic	✓	`#DIV/0!`	`#DIV/0!`
Error - #N/A	read	basic	✓	`#N/A`	`#N/A`
Error - #N/A	write	basic	✓	`#N/A`	`#N/A`
Error - #VALUE!	read	basic	✓	`#VALUE!`	`#VALUE!`
Error - #VALUE!	write	basic	✓	`#VALUE!`	`#VALUE!`
Blank cell	read	basic	✓	`type=blank`	`type=blank`
Blank cell	write	basic	✓	`type=blank`	`type=blank`

python-calamine — 15/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42.0`
Number - float	read	basic	✓	`3.14159265358979`	`3.14159265358979`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456.0`
Number - scientific notation	read	basic	✓	`1.23e-10`	`1.23e-10`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✗	`#DIV/0!`	`type=blank`
Error - #N/A	read	basic	✗	`#N/A`	`type=blank`
Error - #VALUE!	read	basic	✗	`#VALUE!`	`type=blank`
Blank cell	read	basic	✓	`type=blank`	`type=blank`

polars — 15/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
String - simple	read	basic	✓	`Hello World`	`Hello World`
String - unicode	read	basic	✓	`日本語🎉émojis`	`日本語🎉émojis`
String - empty	read	basic	✓	`type=blank`	`type=blank`
String - long (1000 chars)	read	basic	✓	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA	AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
String - with newlines	read	basic	✓	`Line 1 Line 2 Line 3`	`Line 1 Line 2 Line 3`
Number - integer	read	basic	✓	`42`	`42`
Number - float	read	basic	✓	`3.14159265358979`	`3.141592654`
Number - negative	read	basic	✓	`-100.5`	`-100.5`
Number - large	read	basic	✓	`1234567890123456`	`1234567890123456`
Number - scientific notation	read	basic	✓	`1.23e-10`	`0`
Date - standard	read	basic	✓	`2026-02-04`	`2026-02-04`
DateTime - with time	read	basic	✓	`2026-02-04T10:30:45`	`2026-02-04T10:30:45`
Boolean - TRUE	read	basic	✓	`True`	`True`
Boolean - FALSE	read	basic	✓	`False`	`False`
Error - #DIV/0!	read	basic	✗	`#DIV/0!`	`type=blank`
Error - #N/A	read	basic	✗	`#N/A`	`type=blank`
Error - #VALUE!	read	basic	✗	`#VALUE!`	`type=blank`
Blank cell	read	basic	✓	`type=blank`	`type=blank`

FormulasTier 017 libraries · 70% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
pylightxl	0	3	50%	—
pyexcel	0	3	50%	—
pandas	0	3	50%	—
xlsxwriter-constmem	—	3	100%	—
openpyxl-readonly	3	—	100%	—
tablib	0	3	50%	—
sheetjs	1	3	88%	—
exceljs	1	3	88%	—
libreoffice	1	3	88%	—
python-calamine	0	—	0%	—
xlwt	—	0	0%	—
polars	0	—	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

xlsxwriter — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

aspose-cells-foss — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

wolfxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

pylightxl — 4/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got number`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got error`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got number`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

pyexcel — 4/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got number`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got error`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got number`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

pandas — 4/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got number`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got blank`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got number`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

xlsxwriter-constmem — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

openpyxl-readonly — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

tablib — 4/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got number`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got error`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got number`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

sheetjs — 7/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got error`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

exceljs — 7/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got error`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

libreoffice — 7/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - SUM	write	basic	✓	`type=formula, formula==SUM(1,2,3)`	`type=formula, formula==SUM(1,2,3)`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got error`
Formula - cell reference	write	basic	✓	`type=formula, formula==A3*2`	`type=formula, formula==A3*2`
Formula - concat	read	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - concat	write	basic	✓	`type=formula, formula==A4&" "&A5`	`type=formula, formula==A4&" "&A5`
Formula - cross sheet	read	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`
Formula - cross sheet	write	basic	✓	`type=formula, formula=='References'!B2`	`type=formula, formula=='References'!B2`

python-calamine — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got number`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got blank`
Formula - concat	read	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - cross sheet	read	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got number`

xlwt — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	write	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got string`
Formula - cell reference	write	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got string`
Formula - concat	write	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - cross sheet	write	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got string`

polars — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Formula - SUM	read	basic	✗	`type=formula, formula==SUM(1,2,3)`	`error=Expected formula, got number`
Formula - cell reference	read	basic	✗	`type=formula, formula==A3*2`	`error=Expected formula, got blank`
Formula - concat	read	basic	✗	`type=formula, formula==A4&" "&A5`	`error=Expected formula, got string`
Formula - cross sheet	read	basic	✗	`type=formula, formula=='References'!B2`	`error=Expected formula, got number`

Multiple SheetsTier 017 libraries · 98% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
python-calamine	3	—	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
pylightxl	3	3	100%	—
pyexcel	3	3	100%	—
xlwt	—	3	100%	—
pandas	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
openpyxl-readonly	3	—	100%	—
tablib	3	3	100%	—
sheetjs	3	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
polars	1	—	50%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

xlsxwriter — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

python-calamine — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`

aspose-cells-foss — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

wolfxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

pylightxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

pyexcel — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

xlwt — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

pandas — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

xlsxwriter-constmem — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

openpyxl-readonly — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`

tablib — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

sheetjs — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

exceljs — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

libreoffice — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Sheet names	write	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Alpha value	write	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✓	`Beta`	`Beta`
Beta value	write	basic	✓	`Beta`	`Beta`
Gamma value	read	basic	✓	`Gamma`	`Gamma`
Gamma value	write	basic	✓	`Gamma`	`Gamma`

polars — 2/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Sheet names	read	basic	✓	`sheet_names=['Alpha', 'Beta', 'Gamma']`	`sheet_names=['Alpha', 'Beta', 'Gamma']`
Alpha value	read	basic	✓	`Alpha`	`Alpha`
Beta value	read	basic	✗	`Beta`	`type=blank`
Gamma value	read	basic	✗	`Gamma`	`type=blank`

Tier 1 — Formatting

AlignmentTier 117 libraries · 48% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
wolfxl	3	3	100%	—
xlwt	—	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
xlsxwriter	—	1	89%	—
aspose-cells-foss	1	1	89%	—
xlsxwriter-constmem	—	1	89%	—
python-calamine	0	—	0%	Known limitation: python-calamine alignment read is limited because its API does not expose style/alignment metadata.
pylightxl	0	0	0%	Known limitation: pylightxl alignment write is a no-op because the library does not support formatting writes.
pyexcel	0	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✓	`h_align=left`	`h_align=left`
Align - left	write	basic	✓	`h_align=left`	`h_align=left`
Align - center	read	basic	✓	`h_align=center`	`h_align=center`
Align - center	write	basic	✓	`h_align=center`	`h_align=center`
Align - right	read	basic	✓	`h_align=right`	`h_align=right`
Align - right	write	basic	✓	`h_align=right`	`h_align=right`
Align - top	read	basic	✓	`v_align=top`	`v_align=top`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	read	basic	✓	`v_align=center`	`v_align=center`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	read	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - bottom	write	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - wrap text	read	basic	✓	`wrap=True`	`wrap=True`
Align - wrap text	write	basic	✓	`wrap=True`	`wrap=True`
Align - rotation 45	read	basic	✓	`rotation=45`	`rotation=45`
Align - rotation 45	write	basic	✓	`rotation=45`	`rotation=45`
Align - indent 2	read	basic	✓	`indent=2`	`indent=2.0`
Align - indent 2	write	basic	✓	`indent=2`	`indent=2.0`

wolfxl — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✓	`h_align=left`	`h_align=left`
Align - left	write	basic	✓	`h_align=left`	`h_align=left`
Align - center	read	basic	✓	`h_align=center`	`h_align=center`
Align - center	write	basic	✓	`h_align=center`	`h_align=center`
Align - right	read	basic	✓	`h_align=right`	`h_align=right`
Align - right	write	basic	✓	`h_align=right`	`h_align=right`
Align - top	read	basic	✓	`v_align=top`	`v_align=top`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	read	basic	✓	`v_align=center`	`v_align=center`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	read	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - bottom	write	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - wrap text	read	basic	✓	`wrap=True`	`wrap=True`
Align - wrap text	write	basic	✓	`wrap=True`	`wrap=True`
Align - rotation 45	read	basic	✓	`rotation=45`	`rotation=45`
Align - rotation 45	write	basic	✓	`rotation=45`	`rotation=45`
Align - indent 2	read	basic	✓	`indent=2`	`indent=2`
Align - indent 2	write	basic	✓	`indent=2`	`indent=2.0`

xlwt — 9/9 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	write	basic	✓	`h_align=left`	`h_align=left, v_align=bottom`
Align - center	write	basic	✓	`h_align=center`	`h_align=center, v_align=bottom`
Align - right	write	basic	✓	`h_align=right`	`h_align=right, v_align=bottom`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	write	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - wrap text	write	basic	✓	`wrap=True`	`v_align=bottom, wrap=True`
Align - rotation 45	write	basic	✓	`rotation=45`	`v_align=bottom, rotation=45`
Align - indent 2	write	basic	✓	`indent=2`	`v_align=bottom, indent=2`

exceljs — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✓	`h_align=left`	`h_align=left`
Align - left	write	basic	✓	`h_align=left`	`h_align=left`
Align - center	read	basic	✓	`h_align=center`	`h_align=center`
Align - center	write	basic	✓	`h_align=center`	`h_align=center`
Align - right	read	basic	✓	`h_align=right`	`h_align=right`
Align - right	write	basic	✓	`h_align=right`	`h_align=right`
Align - top	read	basic	✓	`v_align=top`	`v_align=top`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	read	basic	✓	`v_align=center`	`v_align=center`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	read	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - bottom	write	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - wrap text	read	basic	✓	`wrap=True`	`wrap=True`
Align - wrap text	write	basic	✓	`wrap=True`	`wrap=True`
Align - rotation 45	read	basic	✓	`rotation=45`	`rotation=45`
Align - rotation 45	write	basic	✓	`rotation=45`	`rotation=45`
Align - indent 2	read	basic	✓	`indent=2`	`indent=2`
Align - indent 2	write	basic	✓	`indent=2`	`indent=2.0`

libreoffice — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✓	`h_align=left`	`h_align=left, v_align=bottom`
Align - left	write	basic	✓	`h_align=left`	`h_align=left, v_align=bottom`
Align - center	read	basic	✓	`h_align=center`	`h_align=center, v_align=bottom`
Align - center	write	basic	✓	`h_align=center`	`h_align=center, v_align=bottom`
Align - right	read	basic	✓	`h_align=right`	`h_align=right, v_align=bottom`
Align - right	write	basic	✓	`h_align=right`	`h_align=right, v_align=bottom`
Align - top	read	basic	✓	`v_align=top`	`v_align=top`
Align - top	write	basic	✓	`v_align=top`	`h_align=general, v_align=top`
Align - center	read	basic	✓	`v_align=center`	`v_align=center`
Align - center	write	basic	✓	`v_align=center`	`h_align=general, v_align=center`
Align - bottom	read	basic	✓	`v_align=bottom`	`v_align=bottom`
Align - bottom	write	basic	✓	`v_align=bottom`	`h_align=general, v_align=bottom`
Align - wrap text	read	basic	✓	`wrap=True`	`v_align=bottom, wrap=True`
Align - wrap text	write	basic	✓	`wrap=True`	`h_align=general, v_align=bottom, wrap=True`
Align - rotation 45	read	basic	✓	`rotation=45`	`h_align=left, v_align=bottom, rotation=45`
Align - rotation 45	write	basic	✓	`rotation=45`	`h_align=general, v_align=bottom, rotation=45`
Align - indent 2	read	basic	✓	`indent=2`	`v_align=bottom, indent=2`
Align - indent 2	write	basic	✓	`indent=2`	`h_align=general, v_align=bottom, indent=2.0`

xlsxwriter — 8/9 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	write	basic	✓	`h_align=left`	`h_align=left`
Align - center	write	basic	✓	`h_align=center`	`h_align=center`
Align - right	write	basic	✓	`h_align=right`	`h_align=right`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	write	basic	✓	`wrap=True`	`wrap=True`
Align - rotation 45	write	basic	✓	`rotation=45`	`rotation=45`
Align - indent 2	write	basic	✓	`indent=2`	`h_align=left, indent=2.0`

aspose-cells-foss — 16/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✓	`h_align=left`	`h_align=left`
Align - left	write	basic	✓	`h_align=left`	`h_align=left`
Align - center	read	basic	✓	`h_align=center`	`h_align=center`
Align - center	write	basic	✓	`h_align=center`	`h_align=center`
Align - right	read	basic	✓	`h_align=right`	`h_align=right`
Align - right	write	basic	✓	`h_align=right`	`h_align=right`
Align - top	read	basic	✓	`v_align=top`	`v_align=top`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	read	basic	✓	`v_align=center`	`v_align=center`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✓	`wrap=True`	`wrap=True`
Align - wrap text	write	basic	✓	`wrap=True`	`wrap=True`
Align - rotation 45	read	basic	✓	`rotation=45`	`rotation=45`
Align - rotation 45	write	basic	✓	`rotation=45`	`rotation=45`
Align - indent 2	read	basic	✓	`indent=2`	`indent=2`
Align - indent 2	write	basic	✓	`indent=2`	`indent=2.0`

xlsxwriter-constmem — 8/9 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	write	basic	✓	`h_align=left`	`h_align=left`
Align - center	write	basic	✓	`h_align=center`	`h_align=center`
Align - right	write	basic	✓	`h_align=right`	`h_align=right`
Align - top	write	basic	✓	`v_align=top`	`v_align=top`
Align - center	write	basic	✓	`v_align=center`	`v_align=center`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	write	basic	✓	`wrap=True`	`wrap=True`
Align - rotation 45	write	basic	✓	`rotation=45`	`rotation=45`
Align - indent 2	write	basic	✓	`indent=2`	`h_align=left, indent=2.0`

python-calamine — 0/9 test cases passed

Test	Op	Imp.	Result	Expected
Align - left	read	basic	✗	`h_align=left`
Align - center	read	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`

pylightxl — 0/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✗	`h_align=left`	`error=expected string or bytes-like object, got 'NoneType'`
Align - left	write	basic	⊘	`h_align=left`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - center	read	basic	✗	`h_align=center`	`error=expected string or bytes-like object, got 'NoneType'`
Align - center	write	basic	⊘	`h_align=center`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - right	read	basic	✗	`h_align=right`	`error=expected string or bytes-like object, got 'NoneType'`
Align - right	write	basic	⊘	`h_align=right`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - top	read	basic	✗	`v_align=top`	`error=expected string or bytes-like object, got 'NoneType'`
Align - top	write	basic	⊘	`v_align=top`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - center	read	basic	✗	`v_align=center`	`error=expected string or bytes-like object, got 'NoneType'`
Align - center	write	basic	⊘	`v_align=center`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - bottom	read	basic	✗	`v_align=bottom`	`error=expected string or bytes-like object, got 'NoneType'`
Align - bottom	write	basic	⊘	`v_align=bottom`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - wrap text	read	basic	✗	`wrap=True`	`error=expected string or bytes-like object, got 'NoneType'`
Align - wrap text	write	basic	⊘	`wrap=True`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - rotation 45	read	basic	✗	`rotation=45`	`error=expected string or bytes-like object, got 'NoneType'`
Align - rotation 45	write	basic	⊘	`rotation=45`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Align - indent 2	read	basic	✗	`indent=2`	`error=expected string or bytes-like object, got 'NoneType'`
Align - indent 2	write	basic	⊘	`indent=2`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`

pyexcel — 0/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Align - left	read	basic	✗	`h_align=left`
Align - left	write	basic	⊘	`h_align=left`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - center	read	basic	✗	`h_align=center`
Align - center	write	basic	⊘	`h_align=center`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - right	read	basic	✗	`h_align=right`
Align - right	write	basic	⊘	`h_align=right`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - top	read	basic	✗	`v_align=top`
Align - top	write	basic	⊘	`v_align=top`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - center	read	basic	✗	`v_align=center`
Align - center	write	basic	⊘	`v_align=center`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - bottom	write	basic	⊘	`v_align=bottom`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - wrap text	read	basic	✗	`wrap=True`
Align - wrap text	write	basic	⊘	`wrap=True`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - rotation 45	write	basic	⊘	`rotation=45`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Align - indent 2	read	basic	✗	`indent=2`
Align - indent 2	write	basic	⊘	`indent=2`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`

pandas — 0/18 test cases passed

Test	Op	Imp.	Result	Expected
Align - left	read	basic	✗	`h_align=left`
Align - left	write	basic	✗	`h_align=left`
Align - center	read	basic	✗	`h_align=center`
Align - center	write	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`
Align - right	write	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`
Align - top	write	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`
Align - center	write	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`
Align - wrap text	write	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - rotation 45	write	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`
Align - indent 2	write	basic	✗	`indent=2`

openpyxl-readonly — 0/9 test cases passed

Test	Op	Imp.	Result	Expected
Align - left	read	basic	✗	`h_align=left`
Align - center	read	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`

polars — 0/9 test cases passed

Test	Op	Imp.	Result	Expected
Align - left	read	basic	✗	`h_align=left`
Align - center	read	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`

tablib — 0/18 test cases passed

Test	Op	Imp.	Result	Expected
Align - left	read	basic	✗	`h_align=left`
Align - left	write	basic	✗	`h_align=left`
Align - center	read	basic	✗	`h_align=center`
Align - center	write	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`
Align - right	write	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`
Align - top	write	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`
Align - center	write	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`
Align - wrap text	write	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - rotation 45	write	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`
Align - indent 2	write	basic	✗	`indent=2`

sheetjs — 0/18 test cases passed

Test	Op	Imp.	Result	Expected
Align - left	read	basic	✗	`h_align=left`
Align - left	write	basic	✗	`h_align=left`
Align - center	read	basic	✗	`h_align=center`
Align - center	write	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`
Align - right	write	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`
Align - top	write	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`
Align - center	write	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`
Align - wrap text	write	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`
Align - rotation 45	write	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`
Align - indent 2	write	basic	✗	`indent=2`

Background ColorsTier 117 libraries · 52% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
sheetjs	3	0	50%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
xlwt	—	1	50%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	read	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	read	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

xlsxwriter — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

aspose-cells-foss — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	read	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	read	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

wolfxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	read	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	read	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

xlsxwriter-constmem — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

sheetjs — 4/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - red	write	basic	✗	`bg_color=#FF0000`
Background - blue	read	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - blue	write	basic	✗	`bg_color=#0000FF`
Background - green	read	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - green	write	basic	✗	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✗	`bg_color=#8B4513`

exceljs — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	read	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	read	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

libreoffice — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	read	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	read	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - green	write	basic	✓	`bg_color=#00FF00`	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✓	`bg_color=#8B4513`	`bg_color=#8B4513`

xlwt — 2/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	write	basic	✓	`bg_color=#FF0000`	`bg_color=#FF0000`
Background - blue	write	basic	✓	`bg_color=#0000FF`	`bg_color=#0000FF`
Background - green	write	basic	✗	`bg_color=#00FF00`	`bg_color=#008000`
Background - custom (#8B4513)	write	basic	✗	`bg_color=#8B4513`	`bg_color=#993300`

python-calamine — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`

pylightxl — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - red	write	basic	⊘	`bg_color=#FF0000`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - blue	write	basic	⊘	`bg_color=#0000FF`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - green	write	basic	⊘	`bg_color=#00FF00`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	⊘	`bg_color=#8B4513`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`

pyexcel — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - red	write	basic	⊘	`bg_color=#FF0000`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - blue	write	basic	⊘	`bg_color=#0000FF`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - green	write	basic	⊘	`bg_color=#00FF00`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	⊘	`bg_color=#8B4513`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`

pandas — 0/8 test cases passed

Test	Op	Imp.	Result	Expected
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - red	write	basic	✗	`bg_color=#FF0000`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - blue	write	basic	✗	`bg_color=#0000FF`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - green	write	basic	✗	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✗	`bg_color=#8B4513`

openpyxl-readonly — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`

polars — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`

tablib — 0/8 test cases passed

Test	Op	Imp.	Result	Expected
Background - red	read	basic	✗	`bg_color=#FF0000`
Background - red	write	basic	✗	`bg_color=#FF0000`
Background - blue	read	basic	✗	`bg_color=#0000FF`
Background - blue	write	basic	✗	`bg_color=#0000FF`
Background - green	read	basic	✗	`bg_color=#00FF00`
Background - green	write	basic	✗	`bg_color=#00FF00`
Background - custom (#8B4513)	read	basic	✗	`bg_color=#8B4513`
Background - custom (#8B4513)	write	basic	✗	`bg_color=#8B4513`

BordersTier 117 libraries · 48% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
aspose-cells-foss	1	1	85%	—
xlwt	—	1	80%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 40/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	read	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	read	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	read	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	read	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	read	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

xlsxwriter — 20/20 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	write	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal down	write	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

wolfxl — 40/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	read	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	read	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	read	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	read	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	read	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

xlsxwriter-constmem — 20/20 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	write	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal down	write	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

exceljs — 40/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	read	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	read	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	read	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	read	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	read	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

libreoffice — 40/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	read	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	read	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	read	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	read	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✓	`border_diagonal_up=thin`	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✓	`border_diagonal_down=thin`	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	read	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

aspose-cells-foss — 34/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	read	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	read	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	read	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✗	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✗	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✓	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	read	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`
Border - mixed colors per edge	write	basic	✓	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

xlwt — 16/20 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	write	basic	✓	`border_style=thin, border_color=#000000`	`border_style=thin, border_color=#000000`
Border - medium all edges	write	basic	✓	`border_style=medium, border_color=#000000`	`border_style=medium, border_color=#000000`
Border - thick all edges	write	basic	✓	`border_style=thick, border_color=#000000`	`border_style=thick, border_color=#000000`
Border - double line	write	basic	✓	`border_style=double, border_color=#000000`	`border_style=double, border_color=#000000`
Border - dashed	write	basic	✓	`border_style=dashed, border_color=#000000`	`border_style=dashed, border_color=#000000`
Border - dotted	write	basic	✓	`border_style=dotted, border_color=#000000`	`border_style=dotted, border_color=#000000`
Border - dash-dot	write	basic	✓	`border_style=dashDot, border_color=#000000`	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✓	`border_style=dashDotDot, border_color=#000000`	`border_style=dashDotDot, border_color=#000000`
Border - top only	write	basic	✓	`border_top=thin`	`border_top=thin, border_top_color=#000000`
Border - bottom only	write	basic	✓	`border_bottom=thin`	`border_bottom=thin, border_bottom_color=#000000`
Border - left only	write	basic	✓	`border_left=thin`	`border_left=thin, border_left_color=#000000`
Border - right only	write	basic	✓	`border_right=thin`	`border_right=thin, border_right_color=#000000`
Border - diagonal up	write	basic	✗	`border_diagonal_up=thin`	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✗	`border_diagonal_down=thin`	`border_diagonal_up=thin`
Border - diagonal both	write	basic	✓	`border_diagonal_up=thin, border_diagonal_down=thin`	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	write	basic	✓	`border_style=thin, border_color=#FF0000`	`border_style=thin, border_color=#FF0000`
Border - blue color	write	basic	✓	`border_style=thin, border_color=#0000FF`	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	write	basic	✗	`border_style=thin, border_color=#8B4513`	`border_style=thin, border_color=#993300`
Border - mixed styles per edge	write	basic	✓	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed, border_color=#000000`
Border - mixed colors per edge	write	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`border_top_color=#FF0000, border_bottom_color=#008000, border_left_color=#0000FF, border_right_color=#FFFF00, border_style=thin`

python-calamine — 0/20 test cases passed

Test	Op	Imp.	Result	Expected
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✗	`border_top=thin`
Border - bottom only	read	basic	✗	`border_bottom=thin`
Border - left only	read	basic	✗	`border_left=thin`
Border - right only	read	basic	✗	`border_right=thin`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`

pylightxl — 0/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - thin all edges	write	basic	⊘	`border_style=thin, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - medium all edges	write	basic	⊘	`border_style=medium, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - thick all edges	write	basic	⊘	`border_style=thick, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - double line	write	basic	⊘	`border_style=double, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - dashed	write	basic	⊘	`border_style=dashed, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - dotted	write	basic	⊘	`border_style=dotted, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - dash-dot	write	basic	⊘	`border_style=dashDot, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - dash-dot-dot	write	basic	⊘	`border_style=dashDotDot, border_color=#000000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - top only	read	basic	✗	`border_top=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - top only	write	basic	⊘	`border_top=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - bottom only	read	basic	✗	`border_bottom=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - bottom only	write	basic	⊘	`border_bottom=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - left only	read	basic	✗	`border_left=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - left only	write	basic	⊘	`border_left=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - right only	read	basic	✗	`border_right=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - right only	write	basic	⊘	`border_right=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - diagonal up	write	basic	⊘	`border_diagonal_up=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - diagonal down	write	basic	⊘	`border_diagonal_down=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`	`error=expected string or bytes-like object, got 'NoneType'`
Border - diagonal both	write	basic	⊘	`border_diagonal_up=thin, border_diagonal_down=thin`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`	`error=expected string or bytes-like object, got 'NoneType'`
Border - red color	write	basic	⊘	`border_style=thin, border_color=#FF0000`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`	`error=expected string or bytes-like object, got 'NoneType'`
Border - blue color	write	basic	⊘	`border_style=thin, border_color=#0000FF`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`	`error=expected string or bytes-like object, got 'NoneType'`
Border - custom color (#8B4513)	write	basic	⊘	`border_style=thin, border_color=#8B4513`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`error=expected string or bytes-like object, got 'NoneType'`
Border - mixed styles per edge	write	basic	⊘	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`error=expected string or bytes-like object, got 'NoneType'`
Border - mixed colors per edge	write	basic	⊘	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`error=pylightxl does not support write_cell_border: pylightxl does not implement this feature`

pyexcel — 0/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	⊘	`border_style=thin, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	⊘	`border_style=medium, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	⊘	`border_style=thick, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`
Border - double line	write	basic	⊘	`border_style=double, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	⊘	`border_style=dashed, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	⊘	`border_style=dotted, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	⊘	`border_style=dashDot, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	⊘	`border_style=dashDotDot, border_color=#000000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - top only	read	basic	✗	`border_top=thin`
Border - top only	write	basic	⊘	`border_top=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - bottom only	read	basic	✗	`border_bottom=thin`
Border - bottom only	write	basic	⊘	`border_bottom=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - left only	read	basic	✗	`border_left=thin`
Border - left only	write	basic	⊘	`border_left=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - right only	read	basic	✗	`border_right=thin`
Border - right only	write	basic	⊘	`border_right=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal up	write	basic	⊘	`border_diagonal_up=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal down	write	basic	⊘	`border_diagonal_down=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	⊘	`border_diagonal_up=thin, border_diagonal_down=thin`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	⊘	`border_style=thin, border_color=#FF0000`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	⊘	`border_style=thin, border_color=#0000FF`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	⊘	`border_style=thin, border_color=#8B4513`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed styles per edge	write	basic	⊘	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`
Border - mixed colors per edge	write	basic	⊘	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`error=pyexcel does not support write_cell_border: pyexcel exposes value-only cells`

pandas — 0/40 test cases passed

Test	Op	Imp.	Result	Expected
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✗	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✗	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✗	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`
Border - double line	write	basic	✗	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✗	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✗	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✗	`border_top=thin`
Border - top only	write	basic	✗	`border_top=thin`
Border - bottom only	read	basic	✗	`border_bottom=thin`
Border - bottom only	write	basic	✗	`border_bottom=thin`
Border - left only	read	basic	✗	`border_left=thin`
Border - left only	write	basic	✗	`border_left=thin`
Border - right only	read	basic	✗	`border_right=thin`
Border - right only	write	basic	✗	`border_right=thin`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✗	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✗	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✗	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✗	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✗	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed styles per edge	write	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`
Border - mixed colors per edge	write	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`

openpyxl-readonly — 0/20 test cases passed

Test	Op	Imp.	Result	Expected
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✗	`border_top=thin`
Border - bottom only	read	basic	✗	`border_bottom=thin`
Border - left only	read	basic	✗	`border_left=thin`
Border - right only	read	basic	✗	`border_right=thin`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`

polars — 0/20 test cases passed

Test	Op	Imp.	Result	Expected
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✗	`border_top=thin`
Border - bottom only	read	basic	✗	`border_bottom=thin`
Border - left only	read	basic	✗	`border_left=thin`
Border - right only	read	basic	✗	`border_right=thin`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`

tablib — 0/40 test cases passed

Test	Op	Imp.	Result	Expected
Border - thin all edges	read	basic	✗	`border_style=thin, border_color=#000000`
Border - thin all edges	write	basic	✗	`border_style=thin, border_color=#000000`
Border - medium all edges	read	basic	✗	`border_style=medium, border_color=#000000`
Border - medium all edges	write	basic	✗	`border_style=medium, border_color=#000000`
Border - thick all edges	read	basic	✗	`border_style=thick, border_color=#000000`
Border - thick all edges	write	basic	✗	`border_style=thick, border_color=#000000`
Border - double line	read	basic	✗	`border_style=double, border_color=#000000`
Border - double line	write	basic	✗	`border_style=double, border_color=#000000`
Border - dashed	read	basic	✗	`border_style=dashed, border_color=#000000`
Border - dashed	write	basic	✗	`border_style=dashed, border_color=#000000`
Border - dotted	read	basic	✗	`border_style=dotted, border_color=#000000`
Border - dotted	write	basic	✗	`border_style=dotted, border_color=#000000`
Border - dash-dot	read	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot	write	basic	✗	`border_style=dashDot, border_color=#000000`
Border - dash-dot-dot	read	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - dash-dot-dot	write	basic	✗	`border_style=dashDotDot, border_color=#000000`
Border - top only	read	basic	✗	`border_top=thin`
Border - top only	write	basic	✗	`border_top=thin`
Border - bottom only	read	basic	✗	`border_bottom=thin`
Border - bottom only	write	basic	✗	`border_bottom=thin`
Border - left only	read	basic	✗	`border_left=thin`
Border - left only	write	basic	✗	`border_left=thin`
Border - right only	read	basic	✗	`border_right=thin`
Border - right only	write	basic	✗	`border_right=thin`
Border - diagonal up	read	basic	✗	`border_diagonal_up=thin`
Border - diagonal up	write	basic	✗	`border_diagonal_up=thin`
Border - diagonal down	read	basic	✗	`border_diagonal_down=thin`
Border - diagonal down	write	basic	✗	`border_diagonal_down=thin`
Border - diagonal both	read	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - diagonal both	write	basic	✗	`border_diagonal_up=thin, border_diagonal_down=thin`
Border - red color	read	basic	✗	`border_style=thin, border_color=#FF0000`
Border - red color	write	basic	✗	`border_style=thin, border_color=#FF0000`
Border - blue color	read	basic	✗	`border_style=thin, border_color=#0000FF`
Border - blue color	write	basic	✗	`border_style=thin, border_color=#0000FF`
Border - custom color (#8B4513)	read	basic	✗	`border_style=thin, border_color=#8B4513`
Border - custom color (#8B4513)	write	basic	✗	`border_style=thin, border_color=#8B4513`
Border - mixed styles per edge	read	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed styles per edge	write	basic	✗	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`
Border - mixed colors per edge	read	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`
Border - mixed colors per edge	write	basic	✗	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`

sheetjs — 0/40 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Border - thin all edges	read	basic	⊘	`border_style=thin, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - thin all edges	write	basic	⊘	`border_style=thin, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - medium all edges	read	basic	⊘	`border_style=medium, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - medium all edges	write	basic	⊘	`border_style=medium, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - thick all edges	read	basic	⊘	`border_style=thick, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - thick all edges	write	basic	⊘	`border_style=thick, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - double line	read	basic	⊘	`border_style=double, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - double line	write	basic	⊘	`border_style=double, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - dashed	read	basic	⊘	`border_style=dashed, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - dashed	write	basic	⊘	`border_style=dashed, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - dotted	read	basic	⊘	`border_style=dotted, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - dotted	write	basic	⊘	`border_style=dotted, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - dash-dot	read	basic	⊘	`border_style=dashDot, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - dash-dot	write	basic	⊘	`border_style=dashDot, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - dash-dot-dot	read	basic	⊘	`border_style=dashDotDot, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - dash-dot-dot	write	basic	⊘	`border_style=dashDotDot, border_color=#000000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - top only	read	basic	⊘	`border_top=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - top only	write	basic	⊘	`border_top=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - bottom only	read	basic	⊘	`border_bottom=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - bottom only	write	basic	⊘	`border_bottom=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - left only	read	basic	⊘	`border_left=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - left only	write	basic	⊘	`border_left=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - right only	read	basic	⊘	`border_right=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - right only	write	basic	⊘	`border_right=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - diagonal up	read	basic	⊘	`border_diagonal_up=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - diagonal up	write	basic	⊘	`border_diagonal_up=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - diagonal down	read	basic	⊘	`border_diagonal_down=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - diagonal down	write	basic	⊘	`border_diagonal_down=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - diagonal both	read	basic	⊘	`border_diagonal_up=thin, border_diagonal_down=thin`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - diagonal both	write	basic	⊘	`border_diagonal_up=thin, border_diagonal_down=thin`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - red color	read	basic	⊘	`border_style=thin, border_color=#FF0000`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - red color	write	basic	⊘	`border_style=thin, border_color=#FF0000`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - blue color	read	basic	⊘	`border_style=thin, border_color=#0000FF`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - blue color	write	basic	⊘	`border_style=thin, border_color=#0000FF`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - custom color (#8B4513)	read	basic	⊘	`border_style=thin, border_color=#8B4513`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - custom color (#8B4513)	write	basic	⊘	`border_style=thin, border_color=#8B4513`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - mixed styles per edge	read	basic	⊘	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - mixed styles per edge	write	basic	⊘	`border_top=thick, border_bottom=thin, border_left=medium, border_right=dashed`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`
Border - mixed colors per edge	read	basic	⊘	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`error=sheetjs does not support cell_border: SheetJS CE does not expose cell borders: with cellStyles the XLSX reader attaches only the fill to cell.s`
Border - mixed colors per edge	write	basic	⊘	`border_top_color=#FF0000, border_bottom_color=#00FF00, border_left_color=#0000FF, border_right_color=#FFFF00`	`error=sheetjs does not support cell_border: SheetJS CE has no border API; the SheetJS CE writer only emits number formats in cell styles`

DimensionsTier 117 libraries · 48% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	1	3	75%	—
wolfxl	3	3	100%	—
sheetjs	3	1	75%	—
exceljs	3	3	100%	—
libreoffice	1	3	75%	—
xlwt	—	1	50%	—
xlsxwriter-constmem	—	1	50%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 30	write	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 45	read	basic	✓	`row_height=45`	`row_height=45.0`
Row height - 45	write	basic	✓	`row_height=45`	`row_height=45.0`
Column width - D = 20	read	basic	✓	`column_width=20`	`column_width=20.0`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	read	basic	✓	`column_width=8`	`column_width=8.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

xlsxwriter — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	write	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 45	write	basic	✓	`row_height=45`	`row_height=45.0`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

aspose-cells-foss — 6/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 30	write	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 45	read	basic	✓	`row_height=45`	`row_height=45.0`
Row height - 45	write	basic	✓	`row_height=45`	`row_height=45.0`
Column width - D = 20	read	basic	✗	`column_width=20`	`column_width=20.83203125`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	read	basic	✗	`column_width=8`	`column_width=8.83203125`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

wolfxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 30	write	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 45	read	basic	✓	`row_height=45`	`row_height=45.0`
Row height - 45	write	basic	✓	`row_height=45`	`row_height=45.0`
Column width - D = 20	read	basic	✓	`column_width=20`	`column_width=20.0`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	read	basic	✓	`column_width=8`	`column_width=8.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

sheetjs — 6/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 30	write	basic	✗	`row_height=30`
Row height - 45	read	basic	✓	`row_height=45`	`row_height=45.0`
Row height - 45	write	basic	✗	`row_height=45`
Column width - D = 20	read	basic	✓	`column_width=20`	`column_width=20.0`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	read	basic	✓	`column_width=8`	`column_width=8.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

exceljs — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 30	write	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 45	read	basic	✓	`row_height=45`	`row_height=45.0`
Row height - 45	write	basic	✓	`row_height=45`	`row_height=45.0`
Column width - D = 20	read	basic	✓	`column_width=20`	`column_width=20.0`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	read	basic	✓	`column_width=8`	`column_width=8.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

libreoffice — 6/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 30	write	basic	✓	`row_height=30`	`row_height=30.0`
Row height - 45	read	basic	✓	`row_height=45`	`row_height=45.0`
Row height - 45	write	basic	✓	`row_height=45`	`row_height=45.0`
Column width - D = 20	read	basic	✗	`column_width=20`	`column_width=19.998`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	read	basic	✗	`column_width=8`	`column_width=7.998`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

xlwt — 2/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	write	basic	✗	`row_height=30`
Row height - 45	write	basic	✗	`row_height=45`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

xlsxwriter-constmem — 2/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	write	basic	✗	`row_height=30`
Row height - 45	write	basic	✗	`row_height=45`
Column width - D = 20	write	basic	✓	`column_width=20`	`column_width=20.0`
Column width - E = 8	write	basic	✓	`column_width=8`	`column_width=8.0`

python-calamine — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Row height - 30	read	basic	✗	`row_height=30`
Row height - 45	read	basic	✗	`row_height=45`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - E = 8	read	basic	✗	`column_width=8`

pylightxl — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✗	`row_height=30`
Row height - 30	write	basic	⊘	`row_height=30`	`error=pylightxl does not support set_row_height: pylightxl does not implement this feature`
Row height - 45	read	basic	✗	`row_height=45`
Row height - 45	write	basic	⊘	`row_height=45`	`error=pylightxl does not support set_row_height: pylightxl does not implement this feature`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - D = 20	write	basic	⊘	`column_width=20`	`error=pylightxl does not support set_row_height: pylightxl does not implement this feature`
Column width - E = 8	read	basic	✗	`column_width=8`
Column width - E = 8	write	basic	⊘	`column_width=8`	`error=pylightxl does not support set_row_height: pylightxl does not implement this feature`

pyexcel — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✗	`row_height=30`
Row height - 30	write	basic	⊘	`row_height=30`	`error=pyexcel does not support set_row_height: pyexcel does not expose row dimension writing`
Row height - 45	read	basic	✗	`row_height=45`
Row height - 45	write	basic	⊘	`row_height=45`	`error=pyexcel does not support set_row_height: pyexcel does not expose row dimension writing`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - D = 20	write	basic	⊘	`column_width=20`	`error=pyexcel does not support set_row_height: pyexcel does not expose row dimension writing`
Column width - E = 8	read	basic	✗	`column_width=8`
Column width - E = 8	write	basic	⊘	`column_width=8`	`error=pyexcel does not support set_row_height: pyexcel does not expose row dimension writing`

pandas — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✗	`row_height=30`
Row height - 30	write	basic	✗	`row_height=30`
Row height - 45	read	basic	✗	`row_height=45`
Row height - 45	write	basic	✗	`row_height=45`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - D = 20	write	basic	✗	`column_width=20`	`column_width=13.0`
Column width - E = 8	read	basic	✗	`column_width=8`
Column width - E = 8	write	basic	✗	`column_width=8`	`column_width=13.0`

openpyxl-readonly — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Row height - 30	read	basic	✗	`row_height=30`
Row height - 45	read	basic	✗	`row_height=45`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - E = 8	read	basic	✗	`column_width=8`

polars — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Row height - 30	read	basic	✗	`row_height=30`
Row height - 45	read	basic	✗	`row_height=45`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - E = 8	read	basic	✗	`column_width=8`

tablib — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Row height - 30	read	basic	✗	`row_height=30`
Row height - 30	write	basic	✗	`row_height=30`
Row height - 45	read	basic	✗	`row_height=45`
Row height - 45	write	basic	✗	`row_height=45`
Column width - D = 20	read	basic	✗	`column_width=20`
Column width - D = 20	write	basic	✗	`column_width=20`	`column_width=13.0`
Column width - E = 8	read	basic	✗	`column_width=8`
Column width - E = 8	write	basic	✗	`column_width=8`	`column_width=13.0`

Number FormatsTier 117 libraries · 55% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlwt	—	3	100%	—
xlsxwriter-constmem	—	3	100%	—
sheetjs	3	3	100%	—
exceljs	3	3	100%	—
libreoffice	1	1	70%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	read	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	read	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	read	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

xlsxwriter — 5/5 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

aspose-cells-foss — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	read	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	read	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	read	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

wolfxl — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	read	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	read	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	read	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

xlwt — 5/5 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

xlsxwriter-constmem — 5/5 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

sheetjs — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	read	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	read	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	read	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

exceljs — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - currency	write	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - percent	read	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	read	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	read	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`
Format - custom text	write	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`

libreoffice — 7/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✓	`number_format=$#,##0.00`	`number_format=$#,##0.00`
Format - currency	write	basic	✗	`number_format=$#,##0.00`	`number_format=\$#,##0.00`
Format - percent	read	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - percent	write	basic	✓	`number_format=0.00%`	`number_format=0.00%`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`	`number_format=YYYY-MM-DD`
Format - date	write	basic	✓	`number_format=yyyy-mm-dd`	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - scientific	write	basic	✓	`number_format=0.00E+00`	`number_format=0.00E+00`
Format - custom text	read	basic	✓	`number_format="USD" 0.00`	`number_format="USD" 0.00`
Format - custom text	write	basic	✗	`number_format="USD" 0.00`	`number_format="USD "0.00`

python-calamine — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`

pylightxl — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - currency	write	basic	⊘	`number_format=$#,##0.00`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - percent	write	basic	⊘	`number_format=0.00%`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - date	write	basic	⊘	`number_format=yyyy-mm-dd`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - scientific	write	basic	⊘	`number_format=0.00E+00`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`
Format - custom text	write	basic	⊘	`number_format="USD" 0.00`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`

pyexcel — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - currency	write	basic	⊘	`number_format=$#,##0.00`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - percent	write	basic	⊘	`number_format=0.00%`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - date	write	basic	⊘	`number_format=yyyy-mm-dd`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - scientific	write	basic	⊘	`number_format=0.00E+00`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`
Format - custom text	write	basic	⊘	`number_format="USD" 0.00`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`

pandas — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - currency	write	basic	✗	`number_format=$#,##0.00`	`number_format=General`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - percent	write	basic	✗	`number_format=0.00%`	`number_format=General`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - date	write	basic	✗	`number_format=yyyy-mm-dd`	`number_format=General`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - scientific	write	basic	✗	`number_format=0.00E+00`	`number_format=General`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`
Format - custom text	write	basic	✗	`number_format="USD" 0.00`	`number_format=General`

openpyxl-readonly — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`

polars — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`

tablib — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Format - currency	read	basic	✗	`number_format=$#,##0.00`
Format - currency	write	basic	✗	`number_format=$#,##0.00`	`number_format=General`
Format - percent	read	basic	✗	`number_format=0.00%`
Format - percent	write	basic	✗	`number_format=0.00%`	`number_format=General`
Format - date	read	basic	✗	`number_format=yyyy-mm-dd`
Format - date	write	basic	✗	`number_format=yyyy-mm-dd`	`number_format=General`
Format - scientific	read	basic	✗	`number_format=0.00E+00`
Format - scientific	write	basic	✗	`number_format=0.00E+00`	`number_format=General`
Format - custom text	read	basic	✗	`number_format="USD" 0.00`
Format - custom text	write	basic	✗	`number_format="USD" 0.00`	`number_format=General`

Text FormattingTier 117 libraries · 46% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
aspose-cells-foss	1	0	47%	—
xlwt	—	1	89%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✓	`bold=True`	`bold=True, font_name=Aptos Narrow, font_size=12.0`
Bold	write	basic	✓	`bold=True`	`bold=True`
Italic	read	basic	✓	`italic=True`	`italic=True, font_name=Aptos Narrow, font_size=12.0`
Italic	write	basic	✓	`italic=True`	`italic=True`
Underline - single	read	basic	✓	`underline=single`	`underline=single, font_name=Aptos Narrow, font_size=12.0`
Underline - single	write	basic	✓	`underline=single`	`underline=single`
Underline - double	read	basic	✓	`underline=double`	`underline=double, font_name=Aptos Narrow, font_size=12.0`
Underline - double	write	basic	✓	`underline=double`	`underline=double`
Strikethrough	read	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Aptos Narrow, font_size=12.0`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True`
Bold + Italic	read	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Aptos Narrow, font_size=12.0`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True`
Font size 8	read	basic	✓	`font_size=8`	`font_name=Aptos Narrow, font_size=8.0`
Font size 8	write	basic	✓	`font_size=8`	`font_size=8.0`
Font size 14	read	basic	✓	`font_size=14`	`font_name=Aptos Narrow, font_size=14.0`
Font size 14	write	basic	✓	`font_size=14`	`font_size=14.0`
Font size 24	read	basic	✓	`font_size=24`	`font_name=Aptos Narrow, font_size=24.0`
Font size 24	write	basic	✓	`font_size=24`	`font_size=24.0`
Font size 36	read	basic	✓	`font_size=36`	`font_name=Aptos Narrow, font_size=36.0`
Font size 36	write	basic	✓	`font_size=36`	`font_size=36.0`
Font - Arial	read	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=12.0`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial`
Font - Times New Roman	read	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=12.0`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman`
Font - Courier New	read	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=12.0`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New`
Font color - red	read	basic	✓	`font_color=#FF0000`	`font_name=Aptos Narrow, font_size=12.0, font_color=#FF0000`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_color=#FF0000`
Font color - blue	read	basic	✓	`font_color=#0000FF`	`font_name=Aptos Narrow, font_size=12.0, font_color=#0000FF`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_color=#0000FF`
Font color - green	read	basic	✓	`font_color=#00FF00`	`font_name=Aptos Narrow, font_size=12.0, font_color=#00FF00`
Font color - green	write	basic	✓	`font_color=#00FF00`	`font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✓	`font_color=#8B4513`	`font_name=Aptos Narrow, font_size=12.0, font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✓	`font_color=#8B4513`	`font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Aptos Narrow, font_size=16.0, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_size=16.0, font_color=#FF0000`

xlsxwriter — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	write	basic	✓	`bold=True`	`bold=True, font_name=Calibri, font_size=11.0`
Italic	write	basic	✓	`italic=True`	`italic=True, font_name=Calibri, font_size=11.0`
Underline - single	write	basic	✓	`underline=single`	`underline=single, font_name=Calibri, font_size=11.0`
Underline - double	write	basic	✓	`underline=double`	`underline=double, font_name=Calibri, font_size=11.0`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Calibri, font_size=11.0`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Calibri, font_size=11.0`
Font size 8	write	basic	✓	`font_size=8`	`font_name=Calibri, font_size=8.0`
Font size 14	write	basic	✓	`font_size=14`	`font_name=Calibri, font_size=14.0`
Font size 24	write	basic	✓	`font_size=24`	`font_name=Calibri, font_size=24.0`
Font size 36	write	basic	✓	`font_size=36`	`font_name=Calibri, font_size=36.0`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=11.0`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=11.0`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=11.0`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_name=Calibri, font_size=11.0, font_color=#FF0000`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_name=Calibri, font_size=11.0, font_color=#0000FF`
Font color - green	write	basic	✓	`font_color=#00FF00`	`font_name=Calibri, font_size=11.0, font_color=#00FF00`
Font color - custom (#8B4513)	write	basic	✓	`font_color=#8B4513`	`font_name=Calibri, font_size=11.0, font_color=#8B4513`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Calibri, font_size=16.0, font_color=#FF0000`

wolfxl — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✓	`bold=True`	`bold=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Bold	write	basic	✓	`bold=True`	`bold=True`
Italic	read	basic	✓	`italic=True`	`italic=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Italic	write	basic	✓	`italic=True`	`italic=True`
Underline - single	read	basic	✓	`underline=single`	`underline=single, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Underline - single	write	basic	✓	`underline=single`	`underline=single`
Underline - double	read	basic	✓	`underline=double`	`underline=double, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Underline - double	write	basic	✓	`underline=double`	`underline=double`
Strikethrough	read	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True`
Bold + Italic	read	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True`
Font size 8	read	basic	✓	`font_size=8`	`font_name=Aptos Narrow, font_size=8.0, font_color=#000000`
Font size 8	write	basic	✓	`font_size=8`	`font_size=8.0`
Font size 14	read	basic	✓	`font_size=14`	`font_name=Aptos Narrow, font_size=14.0, font_color=#000000`
Font size 14	write	basic	✓	`font_size=14`	`font_size=14.0`
Font size 24	read	basic	✓	`font_size=24`	`font_name=Aptos Narrow, font_size=24.0, font_color=#000000`
Font size 24	write	basic	✓	`font_size=24`	`font_size=24.0`
Font size 36	read	basic	✓	`font_size=36`	`font_name=Aptos Narrow, font_size=36.0, font_color=#000000`
Font size 36	write	basic	✓	`font_size=36`	`font_size=36.0`
Font - Arial	read	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=12.0, font_color=#000000`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial`
Font - Times New Roman	read	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=12.0, font_color=#000000`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman`
Font - Courier New	read	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=12.0, font_color=#000000`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New`
Font color - red	read	basic	✓	`font_color=#FF0000`	`font_name=Aptos Narrow, font_size=12.0, font_color=#FF0000`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_color=#FF0000`
Font color - blue	read	basic	✓	`font_color=#0000FF`	`font_name=Aptos Narrow, font_size=12.0, font_color=#0000FF`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_color=#0000FF`
Font color - green	read	basic	✓	`font_color=#00FF00`	`font_name=Aptos Narrow, font_size=12.0, font_color=#00FF00`
Font color - green	write	basic	✓	`font_color=#00FF00`	`font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✓	`font_color=#8B4513`	`font_name=Aptos Narrow, font_size=12.0, font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✓	`font_color=#8B4513`	`font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Aptos Narrow, font_size=16.0, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_size=16.0, font_color=#FF0000`

xlsxwriter-constmem — 18/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	write	basic	✓	`bold=True`	`bold=True, font_name=Calibri, font_size=11.0`
Italic	write	basic	✓	`italic=True`	`italic=True, font_name=Calibri, font_size=11.0`
Underline - single	write	basic	✓	`underline=single`	`underline=single, font_name=Calibri, font_size=11.0`
Underline - double	write	basic	✓	`underline=double`	`underline=double, font_name=Calibri, font_size=11.0`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Calibri, font_size=11.0`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Calibri, font_size=11.0`
Font size 8	write	basic	✓	`font_size=8`	`font_name=Calibri, font_size=8.0`
Font size 14	write	basic	✓	`font_size=14`	`font_name=Calibri, font_size=14.0`
Font size 24	write	basic	✓	`font_size=24`	`font_name=Calibri, font_size=24.0`
Font size 36	write	basic	✓	`font_size=36`	`font_name=Calibri, font_size=36.0`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=11.0`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=11.0`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=11.0`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_name=Calibri, font_size=11.0, font_color=#FF0000`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_name=Calibri, font_size=11.0, font_color=#0000FF`
Font color - green	write	basic	✓	`font_color=#00FF00`	`font_name=Calibri, font_size=11.0, font_color=#00FF00`
Font color - custom (#8B4513)	write	basic	✓	`font_color=#8B4513`	`font_name=Calibri, font_size=11.0, font_color=#8B4513`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Calibri, font_size=16.0, font_color=#FF0000`

exceljs — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✓	`bold=True`	`bold=True, font_name=Aptos Narrow, font_size=12`
Bold	write	basic	✓	`bold=True`	`bold=True`
Italic	read	basic	✓	`italic=True`	`italic=True, font_name=Aptos Narrow, font_size=12`
Italic	write	basic	✓	`italic=True`	`italic=True`
Underline - single	read	basic	✓	`underline=single`	`underline=single, font_name=Aptos Narrow, font_size=12`
Underline - single	write	basic	✓	`underline=single`	`underline=single`
Underline - double	read	basic	✓	`underline=double`	`underline=double, font_name=Aptos Narrow, font_size=12`
Underline - double	write	basic	✓	`underline=double`	`underline=double`
Strikethrough	read	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Aptos Narrow, font_size=12`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True`
Bold + Italic	read	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Aptos Narrow, font_size=12`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True`
Font size 8	read	basic	✓	`font_size=8`	`font_name=Aptos Narrow, font_size=8`
Font size 8	write	basic	✓	`font_size=8`	`font_size=8.0`
Font size 14	read	basic	✓	`font_size=14`	`font_name=Aptos Narrow, font_size=14`
Font size 14	write	basic	✓	`font_size=14`	`font_size=14.0`
Font size 24	read	basic	✓	`font_size=24`	`font_name=Aptos Narrow, font_size=24`
Font size 24	write	basic	✓	`font_size=24`	`font_size=24.0`
Font size 36	read	basic	✓	`font_size=36`	`font_name=Aptos Narrow, font_size=36`
Font size 36	write	basic	✓	`font_size=36`	`font_size=36.0`
Font - Arial	read	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=12`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial`
Font - Times New Roman	read	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=12`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman`
Font - Courier New	read	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=12`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New`
Font color - red	read	basic	✓	`font_color=#FF0000`	`font_name=Aptos Narrow, font_size=12, font_color=#FF0000`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_color=#FF0000`
Font color - blue	read	basic	✓	`font_color=#0000FF`	`font_name=Aptos Narrow, font_size=12, font_color=#0000FF`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_color=#0000FF`
Font color - green	read	basic	✓	`font_color=#00FF00`	`font_name=Aptos Narrow, font_size=12, font_color=#00FF00`
Font color - green	write	basic	✓	`font_color=#00FF00`	`font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✓	`font_color=#8B4513`	`font_name=Aptos Narrow, font_size=12, font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✓	`font_color=#8B4513`	`font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Aptos Narrow, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_size=16.0, font_color=#FF0000`

libreoffice — 36/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✓	`bold=True`	`bold=True, font_name=Aptos Narrow, font_size=12, font_color=#000000`
Bold	write	basic	✓	`bold=True`	`bold=True, font_name=Arial, font_size=10.0`
Italic	read	basic	✓	`italic=True`	`italic=True, font_name=Aptos Narrow, font_size=12, font_color=#000000`
Italic	write	basic	✓	`italic=True`	`italic=True, font_name=Arial, font_size=10.0`
Underline - single	read	basic	✓	`underline=single`	`underline=single, font_name=Aptos Narrow, font_size=12, font_color=#000000`
Underline - single	write	basic	✓	`underline=single`	`underline=single, font_name=Arial, font_size=10.0`
Underline - double	read	basic	✓	`underline=double`	`underline=double, font_name=Aptos Narrow, font_size=12, font_color=#000000`
Underline - double	write	basic	✓	`underline=double`	`underline=double, font_name=Arial, font_size=10.0`
Strikethrough	read	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Aptos Narrow, font_size=12, font_color=#000000`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Arial, font_size=10.0`
Bold + Italic	read	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Aptos Narrow, font_size=12, font_color=#000000`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Arial, font_size=10.0`
Font size 8	read	basic	✓	`font_size=8`	`font_name=Aptos Narrow, font_size=8, font_color=#000000`
Font size 8	write	basic	✓	`font_size=8`	`font_name=Arial, font_size=8.0`
Font size 14	read	basic	✓	`font_size=14`	`font_name=Aptos Narrow, font_size=14, font_color=#000000`
Font size 14	write	basic	✓	`font_size=14`	`font_name=Arial, font_size=14.0`
Font size 24	read	basic	✓	`font_size=24`	`font_name=Aptos Narrow, font_size=24, font_color=#000000`
Font size 24	write	basic	✓	`font_size=24`	`font_name=Arial, font_size=24.0`
Font size 36	read	basic	✓	`font_size=36`	`font_name=Aptos Narrow, font_size=36, font_color=#000000`
Font size 36	write	basic	✓	`font_size=36`	`font_name=Arial, font_size=36.0`
Font - Arial	read	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=12, font_color=#000000`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=10.0`
Font - Times New Roman	read	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=12, font_color=#000000`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=10.0`
Font - Courier New	read	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=12, font_color=#000000`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=10.0`
Font color - red	read	basic	✓	`font_color=#FF0000`	`font_name=Aptos Narrow, font_size=12, font_color=#FF0000`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_name=Arial, font_size=10.0, font_color=#FF0000`
Font color - blue	read	basic	✓	`font_color=#0000FF`	`font_name=Aptos Narrow, font_size=12, font_color=#0000FF`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_name=Arial, font_size=10.0, font_color=#0000FF`
Font color - green	read	basic	✓	`font_color=#00FF00`	`font_name=Aptos Narrow, font_size=12, font_color=#00FF00`
Font color - green	write	basic	✓	`font_color=#00FF00`	`font_name=Arial, font_size=10.0, font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✓	`font_color=#8B4513`	`font_name=Aptos Narrow, font_size=12, font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✓	`font_color=#8B4513`	`font_name=Arial, font_size=10.0, font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Aptos Narrow, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Arial, font_size=16.0, font_color=#FF0000`

aspose-cells-foss — 17/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✓	`bold=True`	`bold=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Bold	write	basic	⊘	`bold=True`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Italic	read	basic	✓	`italic=True`	`italic=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Italic	write	basic	⊘	`italic=True`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Underline - single	read	basic	✓	`underline=single`	`underline=single, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Underline - single	write	basic	⊘	`underline=single`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Underline - double	read	basic	✗	`underline=double`	`underline=single, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Underline - double	write	basic	⊘	`underline=double`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Strikethrough	read	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Strikethrough	write	basic	⊘	`strikethrough=True`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Bold + Italic	read	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Aptos Narrow, font_size=12.0, font_color=#000000`
Bold + Italic	write	basic	⊘	`bold=True, italic=True`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font size 8	read	basic	✓	`font_size=8`	`font_name=Aptos Narrow, font_size=8.0, font_color=#000000`
Font size 8	write	basic	⊘	`font_size=8`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font size 14	read	basic	✓	`font_size=14`	`font_name=Aptos Narrow, font_size=14.0, font_color=#000000`
Font size 14	write	basic	⊘	`font_size=14`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font size 24	read	basic	✓	`font_size=24`	`font_name=Aptos Narrow, font_size=24.0, font_color=#000000`
Font size 24	write	basic	⊘	`font_size=24`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font size 36	read	basic	✓	`font_size=36`	`font_name=Aptos Narrow, font_size=36.0, font_color=#000000`
Font size 36	write	basic	⊘	`font_size=36`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font - Arial	read	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=12.0, font_color=#000000`
Font - Arial	write	basic	⊘	`font_name=Arial`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font - Times New Roman	read	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=12.0, font_color=#000000`
Font - Times New Roman	write	basic	⊘	`font_name=Times New Roman`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font - Courier New	read	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=12.0, font_color=#000000`
Font - Courier New	write	basic	⊘	`font_name=Courier New`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font color - red	read	basic	✓	`font_color=#FF0000`	`font_name=Aptos Narrow, font_size=12.0, font_color=#FF0000`
Font color - red	write	basic	⊘	`font_color=#FF0000`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font color - blue	read	basic	✓	`font_color=#0000FF`	`font_name=Aptos Narrow, font_size=12.0, font_color=#0000FF`
Font color - blue	write	basic	⊘	`font_color=#0000FF`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font color - green	read	basic	✓	`font_color=#00FF00`	`font_name=Aptos Narrow, font_size=12.0, font_color=#00FF00`
Font color - green	write	basic	⊘	`font_color=#00FF00`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Font color - custom (#8B4513)	read	basic	✓	`font_color=#8B4513`	`font_name=Aptos Narrow, font_size=12.0, font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	⊘	`font_color=#8B4513`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`
Combined - bold, 16pt, red	read	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Aptos Narrow, font_size=16.0, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	⊘	`bold=True, font_size=16, font_color=#FF0000`	`error=aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.`

xlwt — 16/18 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	write	basic	✓	`bold=True`	`bold=True, font_name=Arial, font_size=10.0`
Italic	write	basic	✓	`italic=True`	`italic=True, font_name=Arial, font_size=10.0`
Underline - single	write	basic	✓	`underline=single`	`underline=single, font_name=Arial, font_size=10.0`
Underline - double	write	basic	✓	`underline=double`	`underline=double, font_name=Arial, font_size=10.0`
Strikethrough	write	basic	✓	`strikethrough=True`	`strikethrough=True, font_name=Arial, font_size=10.0`
Bold + Italic	write	basic	✓	`bold=True, italic=True`	`bold=True, italic=True, font_name=Arial, font_size=10.0`
Font size 8	write	basic	✓	`font_size=8`	`font_name=Arial, font_size=8.0`
Font size 14	write	basic	✓	`font_size=14`	`font_name=Arial, font_size=14.0`
Font size 24	write	basic	✓	`font_size=24`	`font_name=Arial, font_size=24.0`
Font size 36	write	basic	✓	`font_size=36`	`font_name=Arial, font_size=36.0`
Font - Arial	write	basic	✓	`font_name=Arial`	`font_name=Arial, font_size=10.0`
Font - Times New Roman	write	basic	✓	`font_name=Times New Roman`	`font_name=Times New Roman, font_size=10.0`
Font - Courier New	write	basic	✓	`font_name=Courier New`	`font_name=Courier New, font_size=10.0`
Font color - red	write	basic	✓	`font_color=#FF0000`	`font_name=Arial, font_size=10.0, font_color=#FF0000`
Font color - blue	write	basic	✓	`font_color=#0000FF`	`font_name=Arial, font_size=10.0, font_color=#0000FF`
Font color - green	write	basic	✗	`font_color=#00FF00`	`font_name=Arial, font_size=10.0, font_color=#008000`
Font color - custom (#8B4513)	write	basic	✗	`font_color=#8B4513`	`font_name=Arial, font_size=10.0, font_color=#993300`
Combined - bold, 16pt, red	write	basic	✓	`bold=True, font_size=16, font_color=#FF0000`	`bold=True, font_name=Arial, font_size=16.0, font_color=#FF0000`

python-calamine — 0/18 test cases passed

Test	Op	Imp.	Result	Expected
Bold	read	basic	✗	`bold=True`
Italic	read	basic	✗	`italic=True`
Underline - single	read	basic	✗	`underline=single`
Underline - double	read	basic	✗	`underline=double`
Strikethrough	read	basic	✗	`strikethrough=True`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Font size 8	read	basic	✗	`font_size=8`
Font size 14	read	basic	✗	`font_size=14`
Font size 24	read	basic	✗	`font_size=24`
Font size 36	read	basic	✗	`font_size=36`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`

pylightxl — 0/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✗	`bold=True`
Bold	write	basic	⊘	`bold=True`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Italic	read	basic	✗	`italic=True`
Italic	write	basic	⊘	`italic=True`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Underline - single	read	basic	✗	`underline=single`
Underline - single	write	basic	⊘	`underline=single`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Underline - double	read	basic	✗	`underline=double`
Underline - double	write	basic	⊘	`underline=double`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Strikethrough	read	basic	✗	`strikethrough=True`
Strikethrough	write	basic	⊘	`strikethrough=True`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Bold + Italic	write	basic	⊘	`bold=True, italic=True`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font size 8	read	basic	✗	`font_size=8`
Font size 8	write	basic	⊘	`font_size=8`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font size 14	read	basic	✗	`font_size=14`
Font size 14	write	basic	⊘	`font_size=14`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font size 24	read	basic	✗	`font_size=24`
Font size 24	write	basic	⊘	`font_size=24`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font size 36	read	basic	✗	`font_size=36`
Font size 36	write	basic	⊘	`font_size=36`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Arial	write	basic	⊘	`font_name=Arial`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Times New Roman	write	basic	⊘	`font_name=Times New Roman`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font - Courier New	write	basic	⊘	`font_name=Courier New`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - red	write	basic	⊘	`font_color=#FF0000`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - blue	write	basic	⊘	`font_color=#0000FF`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - green	write	basic	⊘	`font_color=#00FF00`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	⊘	`font_color=#8B4513`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	⊘	`bold=True, font_size=16, font_color=#FF0000`	`error=pylightxl does not support write_cell_format: pylightxl does not implement this feature`

pyexcel — 0/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✗	`bold=True`
Bold	write	basic	⊘	`bold=True`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Italic	read	basic	✗	`italic=True`
Italic	write	basic	⊘	`italic=True`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Underline - single	read	basic	✗	`underline=single`
Underline - single	write	basic	⊘	`underline=single`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Underline - double	read	basic	✗	`underline=double`
Underline - double	write	basic	⊘	`underline=double`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Strikethrough	read	basic	✗	`strikethrough=True`
Strikethrough	write	basic	⊘	`strikethrough=True`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Bold + Italic	write	basic	⊘	`bold=True, italic=True`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font size 8	read	basic	✗	`font_size=8`
Font size 8	write	basic	⊘	`font_size=8`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font size 14	read	basic	✗	`font_size=14`
Font size 14	write	basic	⊘	`font_size=14`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font size 24	read	basic	✗	`font_size=24`
Font size 24	write	basic	⊘	`font_size=24`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font size 36	read	basic	✗	`font_size=36`
Font size 36	write	basic	⊘	`font_size=36`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Arial	write	basic	⊘	`font_name=Arial`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Times New Roman	write	basic	⊘	`font_name=Times New Roman`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font - Courier New	write	basic	⊘	`font_name=Courier New`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - red	write	basic	⊘	`font_color=#FF0000`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - blue	write	basic	⊘	`font_color=#0000FF`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - green	write	basic	⊘	`font_color=#00FF00`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	⊘	`font_color=#8B4513`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	⊘	`bold=True, font_size=16, font_color=#FF0000`	`error=pyexcel does not support write_cell_format: pyexcel exposes value-only cells`

pandas — 0/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✗	`bold=True`
Bold	write	basic	✗	`bold=True`	`font_name=Calibri, font_size=11.0`
Italic	read	basic	✗	`italic=True`
Italic	write	basic	✗	`italic=True`	`font_name=Calibri, font_size=11.0`
Underline - single	read	basic	✗	`underline=single`
Underline - single	write	basic	✗	`underline=single`	`font_name=Calibri, font_size=11.0`
Underline - double	read	basic	✗	`underline=double`
Underline - double	write	basic	✗	`underline=double`	`font_name=Calibri, font_size=11.0`
Strikethrough	read	basic	✗	`strikethrough=True`
Strikethrough	write	basic	✗	`strikethrough=True`	`font_name=Calibri, font_size=11.0`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Bold + Italic	write	basic	✗	`bold=True, italic=True`	`font_name=Calibri, font_size=11.0`
Font size 8	read	basic	✗	`font_size=8`
Font size 8	write	basic	✗	`font_size=8`	`font_name=Calibri, font_size=11.0`
Font size 14	read	basic	✗	`font_size=14`
Font size 14	write	basic	✗	`font_size=14`	`font_name=Calibri, font_size=11.0`
Font size 24	read	basic	✗	`font_size=24`
Font size 24	write	basic	✗	`font_size=24`	`font_name=Calibri, font_size=11.0`
Font size 36	read	basic	✗	`font_size=36`
Font size 36	write	basic	✗	`font_size=36`	`font_name=Calibri, font_size=11.0`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Arial	write	basic	✗	`font_name=Arial`	`font_name=Calibri, font_size=11.0`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Times New Roman	write	basic	✗	`font_name=Times New Roman`	`font_name=Calibri, font_size=11.0`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font - Courier New	write	basic	✗	`font_name=Courier New`	`font_name=Calibri, font_size=11.0`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - red	write	basic	✗	`font_color=#FF0000`	`font_name=Calibri, font_size=11.0`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - blue	write	basic	✗	`font_color=#0000FF`	`font_name=Calibri, font_size=11.0`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - green	write	basic	✗	`font_color=#00FF00`	`font_name=Calibri, font_size=11.0`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✗	`font_color=#8B4513`	`font_name=Calibri, font_size=11.0`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✗	`bold=True, font_size=16, font_color=#FF0000`	`font_name=Calibri, font_size=11.0`

openpyxl-readonly — 0/18 test cases passed

Test	Op	Imp.	Result	Expected
Bold	read	basic	✗	`bold=True`
Italic	read	basic	✗	`italic=True`
Underline - single	read	basic	✗	`underline=single`
Underline - double	read	basic	✗	`underline=double`
Strikethrough	read	basic	✗	`strikethrough=True`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Font size 8	read	basic	✗	`font_size=8`
Font size 14	read	basic	✗	`font_size=14`
Font size 24	read	basic	✗	`font_size=24`
Font size 36	read	basic	✗	`font_size=36`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`

polars — 0/18 test cases passed

Test	Op	Imp.	Result	Expected
Bold	read	basic	✗	`bold=True`
Italic	read	basic	✗	`italic=True`
Underline - single	read	basic	✗	`underline=single`
Underline - double	read	basic	✗	`underline=double`
Strikethrough	read	basic	✗	`strikethrough=True`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Font size 8	read	basic	✗	`font_size=8`
Font size 14	read	basic	✗	`font_size=14`
Font size 24	read	basic	✗	`font_size=24`
Font size 36	read	basic	✗	`font_size=36`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`

tablib — 0/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✗	`bold=True`
Bold	write	basic	✗	`bold=True`	`font_name=Calibri, font_size=11.0`
Italic	read	basic	✗	`italic=True`
Italic	write	basic	✗	`italic=True`	`font_name=Calibri, font_size=11.0`
Underline - single	read	basic	✗	`underline=single`
Underline - single	write	basic	✗	`underline=single`	`font_name=Calibri, font_size=11.0`
Underline - double	read	basic	✗	`underline=double`
Underline - double	write	basic	✗	`underline=double`	`font_name=Calibri, font_size=11.0`
Strikethrough	read	basic	✗	`strikethrough=True`
Strikethrough	write	basic	✗	`strikethrough=True`	`font_name=Calibri, font_size=11.0`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Bold + Italic	write	basic	✗	`bold=True, italic=True`	`font_name=Calibri, font_size=11.0`
Font size 8	read	basic	✗	`font_size=8`
Font size 8	write	basic	✗	`font_size=8`	`font_name=Calibri, font_size=11.0`
Font size 14	read	basic	✗	`font_size=14`
Font size 14	write	basic	✗	`font_size=14`	`font_name=Calibri, font_size=11.0`
Font size 24	read	basic	✗	`font_size=24`
Font size 24	write	basic	✗	`font_size=24`	`font_name=Calibri, font_size=11.0`
Font size 36	read	basic	✗	`font_size=36`
Font size 36	write	basic	✗	`font_size=36`	`font_name=Calibri, font_size=11.0`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Arial	write	basic	✗	`font_name=Arial`	`font_name=Calibri, font_size=11.0`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Times New Roman	write	basic	✗	`font_name=Times New Roman`	`font_name=Calibri, font_size=11.0`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font - Courier New	write	basic	✗	`font_name=Courier New`	`font_name=Calibri, font_size=11.0`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - red	write	basic	✗	`font_color=#FF0000`	`font_name=Calibri, font_size=11.0`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - blue	write	basic	✗	`font_color=#0000FF`	`font_name=Calibri, font_size=11.0`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - green	write	basic	✗	`font_color=#00FF00`	`font_name=Calibri, font_size=11.0`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✗	`font_color=#8B4513`	`font_name=Calibri, font_size=11.0`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✗	`bold=True, font_size=16, font_color=#FF0000`	`font_name=Calibri, font_size=11.0`

sheetjs — 0/36 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Bold	read	basic	✗	`bold=True`
Bold	write	basic	✗	`bold=True`	`font_name=Calibri, font_size=12.0`
Italic	read	basic	✗	`italic=True`
Italic	write	basic	✗	`italic=True`	`font_name=Calibri, font_size=12.0`
Underline - single	read	basic	✗	`underline=single`
Underline - single	write	basic	✗	`underline=single`	`font_name=Calibri, font_size=12.0`
Underline - double	read	basic	✗	`underline=double`
Underline - double	write	basic	✗	`underline=double`	`font_name=Calibri, font_size=12.0`
Strikethrough	read	basic	✗	`strikethrough=True`
Strikethrough	write	basic	✗	`strikethrough=True`	`font_name=Calibri, font_size=12.0`
Bold + Italic	read	basic	✗	`bold=True, italic=True`
Bold + Italic	write	basic	✗	`bold=True, italic=True`	`font_name=Calibri, font_size=12.0`
Font size 8	read	basic	✗	`font_size=8`
Font size 8	write	basic	✗	`font_size=8`	`font_name=Calibri, font_size=12.0`
Font size 14	read	basic	✗	`font_size=14`
Font size 14	write	basic	✗	`font_size=14`	`font_name=Calibri, font_size=12.0`
Font size 24	read	basic	✗	`font_size=24`
Font size 24	write	basic	✗	`font_size=24`	`font_name=Calibri, font_size=12.0`
Font size 36	read	basic	✗	`font_size=36`
Font size 36	write	basic	✗	`font_size=36`	`font_name=Calibri, font_size=12.0`
Font - Arial	read	basic	✗	`font_name=Arial`
Font - Arial	write	basic	✗	`font_name=Arial`	`font_name=Calibri, font_size=12.0`
Font - Times New Roman	read	basic	✗	`font_name=Times New Roman`
Font - Times New Roman	write	basic	✗	`font_name=Times New Roman`	`font_name=Calibri, font_size=12.0`
Font - Courier New	read	basic	✗	`font_name=Courier New`
Font - Courier New	write	basic	✗	`font_name=Courier New`	`font_name=Calibri, font_size=12.0`
Font color - red	read	basic	✗	`font_color=#FF0000`
Font color - red	write	basic	✗	`font_color=#FF0000`	`font_name=Calibri, font_size=12.0`
Font color - blue	read	basic	✗	`font_color=#0000FF`
Font color - blue	write	basic	✗	`font_color=#0000FF`	`font_name=Calibri, font_size=12.0`
Font color - green	read	basic	✗	`font_color=#00FF00`
Font color - green	write	basic	✗	`font_color=#00FF00`	`font_name=Calibri, font_size=12.0`
Font color - custom (#8B4513)	read	basic	✗	`font_color=#8B4513`
Font color - custom (#8B4513)	write	basic	✗	`font_color=#8B4513`	`font_name=Calibri, font_size=12.0`
Combined - bold, 16pt, red	read	basic	✗	`bold=True, font_size=16, font_color=#FF0000`
Combined - bold, 16pt, red	write	basic	✗	`bold=True, font_size=16, font_color=#FF0000`	`font_name=Calibri, font_size=12.0`

Tier 2 — Advanced

CommentsTier 217 libraries · 46% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	0	50%	—
wolfxl	3	3	100%	—
sheetjs	3	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

xlsxwriter — 3/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	write	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	write	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	write	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

aspose-cells-foss — 3/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'None:Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'None:Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'None:Another note', 'threaded': False}`

wolfxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

sheetjs — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

exceljs — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

libreoffice — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✓	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✓	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✓	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

python-calamine — 0/3 test cases passed

Test	Op	Imp.	Result	Expected
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

pylightxl — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	⊘	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`error=pylightxl does not support add_comment: pylightxl does not implement this feature`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	⊘	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`error=pylightxl does not support add_comment: pylightxl does not implement this feature`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	⊘	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`error=pylightxl does not support add_comment: pylightxl does not implement this feature`

pyexcel — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	⊘	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`error=pyexcel does not support add_comment: pyexcel does not expose this worksheet feature`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	⊘	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`error=pyexcel does not support add_comment: pyexcel does not expose this worksheet feature`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	⊘	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`error=pyexcel does not support add_comment: pyexcel does not expose this worksheet feature`

xlwt — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Comment: legacy note	write	basic	⊘	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`	`error=xlwt does not support add_comment: xlwt cannot author comments`
Comment: threaded	write	edge	⊘	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`	`error=xlwt does not support add_comment: xlwt cannot author comments`
Comment: second author	write	edge	⊘	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`	`error=xlwt does not support add_comment: xlwt cannot author comments`

pandas — 0/6 test cases passed

Test	Op	Imp.	Result	Expected
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

xlsxwriter-constmem — 0/3 test cases passed

Test	Op	Imp.	Result	Expected
Comment: legacy note	write	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	write	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	write	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

openpyxl-readonly — 0/3 test cases passed

Test	Op	Imp.	Result	Expected
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

polars — 0/3 test cases passed

Test	Op	Imp.	Result	Expected
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

tablib — 0/6 test cases passed

Test	Op	Imp.	Result	Expected
Comment: legacy note	read	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: legacy note	write	basic	✗	`comment={'cell': 'B2', 'text': 'Legacy note', 'threaded': False}`
Comment: threaded	read	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: threaded	write	edge	✗	`comment={'cell': 'B3', 'text': 'Threaded fallback', 'threaded': False}`
Comment: second author	read	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`
Comment: second author	write	edge	✗	`comment={'cell': 'B4', 'text': 'Another note', 'threaded': False}`

Cond. FormattingTier 217 libraries · 41% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
exceljs	2	2	83%	—
libreoffice	2	0	50%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: 3-color scale	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: stop-if-true priority	read	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

xlsxwriter — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	write	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: stop-if-true priority	write	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

aspose-cells-foss — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: 3-color scale	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: stop-if-true priority	read	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

wolfxl — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: 3-color scale	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: stop-if-true priority	read	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

xlsxwriter-constmem — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	write	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: stop-if-true priority	write	edge	✓	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

exceljs — 10/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: 3-color scale	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': None, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': None, 'format': {'bg_color': '#FF0000'}}`

libreoffice — 6/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'format': {'bg_color': '#000000'}}`
CF: formula rule with cross-sheet ref	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'format': {'bg_color': '#000000'}}`
CF: text contains	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'format': {'bg_color': '#000000'}}`
CF: data bar	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: data bar	write	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar'}`
CF: 3-color scale	read	edge	✓	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale'}`
CF: 3-color scale	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': None, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'stop_if_true': None, 'format': {'bg_color': '#000000'}}`

python-calamine — 0/6 test cases passed

Test	Op	Imp.	Result	Expected
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

pylightxl — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`error=expected string or bytes-like object, got 'NoneType'`
CF: cell > 5 (yellow fill)	write	basic	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`error=pylightxl does not support add_conditional_format: pylightxl does not implement this feature`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`error=expected string or bytes-like object, got 'NoneType'`
CF: formula rule with cross-sheet ref	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`error=pylightxl does not support add_conditional_format: pylightxl does not implement this feature`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`error=expected string or bytes-like object, got 'NoneType'`
CF: text contains	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`error=pylightxl does not support add_conditional_format: pylightxl does not implement this feature`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`error=expected string or bytes-like object, got 'NoneType'`
CF: data bar	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`error=pylightxl does not support add_conditional_format: pylightxl does not implement this feature`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`error=expected string or bytes-like object, got 'NoneType'`
CF: 3-color scale	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`error=pylightxl does not support add_conditional_format: pylightxl does not implement this feature`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`error=expected string or bytes-like object, got 'NoneType'`
CF: stop-if-true priority	write	edge	⊘	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`error=pylightxl does not support add_conditional_format: pylightxl does not implement this feature`

pyexcel — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`error=pyexcel does not support add_conditional_format: pyexcel does not expose this worksheet feature`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`error=pyexcel does not support add_conditional_format: pyexcel does not expose this worksheet feature`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`error=pyexcel does not support add_conditional_format: pyexcel does not expose this worksheet feature`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: data bar	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`error=pyexcel does not support add_conditional_format: pyexcel does not expose this worksheet feature`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: 3-color scale	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`error=pyexcel does not support add_conditional_format: pyexcel does not expose this worksheet feature`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	⊘	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`error=pyexcel does not support add_conditional_format: pyexcel does not expose this worksheet feature`

xlwt — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	write	basic	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`error=xlwt does not support add_conditional_format: xlwt cannot author conditional formatting`
CF: formula rule with cross-sheet ref	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`error=xlwt does not support add_conditional_format: xlwt cannot author conditional formatting`
CF: text contains	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`error=xlwt does not support add_conditional_format: xlwt cannot author conditional formatting`
CF: data bar	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`error=xlwt does not support add_conditional_format: xlwt cannot author conditional formatting`
CF: 3-color scale	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`error=xlwt does not support add_conditional_format: xlwt cannot author conditional formatting`
CF: stop-if-true priority	write	edge	⊘	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`error=xlwt does not support add_conditional_format: xlwt cannot author conditional formatting`

pandas — 0/12 test cases passed

Test	Op	Imp.	Result	Expected
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: data bar	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: 3-color scale	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

openpyxl-readonly — 0/6 test cases passed

Test	Op	Imp.	Result	Expected
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

polars — 0/6 test cases passed

Test	Op	Imp.	Result	Expected
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

tablib — 0/12 test cases passed

Test	Op	Imp.	Result	Expected
CF: cell > 5 (yellow fill)	read	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: cell > 5 (yellow fill)	write	basic	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`
CF: formula rule with cross-sheet ref	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: formula rule with cross-sheet ref	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`
CF: text contains	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: text contains	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`
CF: data bar	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: data bar	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: 3-color scale	read	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: 3-color scale	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
CF: stop-if-true priority	read	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`
CF: stop-if-true priority	write	edge	✗	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`

sheetjs — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
CF: cell > 5 (yellow fill)	read	basic	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`error=sheetjs does not support conditional_formats: SheetJS CE has no conditional formatting API; the XLSX reader skips <conditionalFormatting>`
CF: cell > 5 (yellow fill)	write	basic	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'cellIs', 'operator': 'greaterThan', 'formula': '5', 'priority': 1, 'format': {'bg_color': '#FFFF00'}}`	`error=sheetjs does not support conditional_format: SheetJS CE has no conditional formatting API; the XLSX writer emits no <conditionalFormatting>`
CF: formula rule with cross-sheet ref	read	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`error=sheetjs does not support conditional_formats: SheetJS CE has no conditional formatting API; the XLSX reader skips <conditionalFormatting>`
CF: formula rule with cross-sheet ref	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, 'format': {'bg_color': '#FF00FF'}}`	`error=sheetjs does not support conditional_format: SheetJS CE has no conditional formatting API; the XLSX writer emits no <conditionalFormatting>`
CF: text contains	read	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`error=sheetjs does not support conditional_formats: SheetJS CE has no conditional formatting API; the XLSX reader skips <conditionalFormatting>`
CF: text contains	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=ISNUMBER(SEARCH("foo",B2))', 'priority': 3, 'format': {'bg_color': '#FFFF00'}}`	`error=sheetjs does not support conditional_format: SheetJS CE has no conditional formatting API; the XLSX writer emits no <conditionalFormatting>`
CF: data bar	read	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`error=sheetjs does not support conditional_formats: SheetJS CE has no conditional formatting API; the XLSX reader skips <conditionalFormatting>`
CF: data bar	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`	`error=sheetjs does not support conditional_format: SheetJS CE has no conditional formatting API; the XLSX writer emits no <conditionalFormatting>`
CF: 3-color scale	read	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`error=sheetjs does not support conditional_formats: SheetJS CE has no conditional formatting API; the XLSX reader skips <conditionalFormatting>`
CF: 3-color scale	write	edge	⊘	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`	`error=sheetjs does not support conditional_format: SheetJS CE has no conditional formatting API; the XLSX writer emits no <conditionalFormatting>`
CF: stop-if-true priority	read	edge	⊘	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`error=sheetjs does not support conditional_formats: SheetJS CE has no conditional formatting API; the XLSX reader skips <conditionalFormatting>`
CF: stop-if-true priority	write	edge	⊘	`cf_rule={'range': 'B7:B9', 'rule_type': 'cellIs', 'operator': 'lessThan', 'formula': '3', 'priority': 1, 'stop_if_true': True, 'format': {'bg_color': '#FF0000'}}`	`error=sheetjs does not support conditional_format: SheetJS CE has no conditional formatting API; the XLSX writer emits no <conditionalFormatting>`

Data ValidationTier 217 libraries · 45% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	2	90%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

xlsxwriter — 5/5 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	write	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

aspose-cells-foss — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

wolfxl — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

xlsxwriter-constmem — 5/5 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	write	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

exceljs — 10/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

libreoffice — 9/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✓	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✓	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✓	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✓	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✓	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

python-calamine — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

pylightxl — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`error=expected string or bytes-like object, got 'NoneType'`
DV: list from CSV	write	basic	⊘	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`error=pylightxl does not support add_data_validation: pylightxl does not implement this feature`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`error=expected string or bytes-like object, got 'NoneType'`
DV: list from range	write	edge	⊘	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`error=pylightxl does not support add_data_validation: pylightxl does not implement this feature`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`error=expected string or bytes-like object, got 'NoneType'`
DV: cross-sheet named range	write	edge	⊘	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`error=pylightxl does not support add_data_validation: pylightxl does not implement this feature`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`error=expected string or bytes-like object, got 'NoneType'`
DV: custom formula	write	edge	⊘	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`error=pylightxl does not support add_data_validation: pylightxl does not implement this feature`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`error=expected string or bytes-like object, got 'NoneType'`
DV: whole number with error	write	basic	⊘	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`error=pylightxl does not support add_data_validation: pylightxl does not implement this feature`

pyexcel — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	⊘	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`error=pyexcel does not support add_data_validation: pyexcel does not expose this worksheet feature`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	⊘	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`error=pyexcel does not support add_data_validation: pyexcel does not expose this worksheet feature`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	⊘	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`error=pyexcel does not support add_data_validation: pyexcel does not expose this worksheet feature`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	⊘	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`error=pyexcel does not support add_data_validation: pyexcel does not expose this worksheet feature`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	⊘	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`error=pyexcel does not support add_data_validation: pyexcel does not expose this worksheet feature`

xlwt — 0/5 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	write	basic	⊘	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`error=xlwt does not support add_data_validation: xlwt cannot author data validations`
DV: list from range	write	edge	⊘	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`error=xlwt does not support add_data_validation: xlwt cannot author data validations`
DV: cross-sheet named range	write	edge	⊘	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`error=xlwt does not support add_data_validation: xlwt cannot author data validations`
DV: custom formula	write	edge	⊘	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`error=xlwt does not support add_data_validation: xlwt cannot author data validations`
DV: whole number with error	write	basic	⊘	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`error=xlwt does not support add_data_validation: xlwt cannot author data validations`

pandas — 0/10 test cases passed

Test	Op	Imp.	Result	Expected
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

openpyxl-readonly — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

polars — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

tablib — 0/10 test cases passed

Test	Op	Imp.	Result	Expected
DV: list from CSV	read	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from CSV	write	basic	✗	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`
DV: list from range	read	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: list from range	write	edge	✗	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`
DV: cross-sheet named range	read	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: cross-sheet named range	write	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	read	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: custom formula	write	edge	✗	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`
DV: whole number with error	read	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`
DV: whole number with error	write	basic	✗	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`

sheetjs — 0/10 test cases passed

Test	Op	Imp.	Result	Expected	Actual
DV: list from CSV	read	basic	⊘	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`error=sheetjs does not support data_validations: SheetJS CE has no data validation API; the XLSX reader skips <dataValidations>`
DV: list from CSV	write	basic	⊘	`validation={'range': 'B2', 'validation_type': 'list', 'formula1': '"Red,Green,Blue"', 'allow_blank': True}`	`error=sheetjs does not support data_validation: SheetJS CE has no data validation API; the XLSX writer emits no <dataValidations>`
DV: list from range	read	edge	⊘	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`error=sheetjs does not support data_validations: SheetJS CE has no data validation API; the XLSX reader skips <dataValidations>`
DV: list from range	write	edge	⊘	`validation={'range': 'B3', 'validation_type': 'list', 'formula1': '=$D$2:$D$4'}`	`error=sheetjs does not support data_validation: SheetJS CE has no data validation API; the XLSX writer emits no <dataValidations>`
DV: cross-sheet named range	read	edge	⊘	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`error=sheetjs does not support data_validations: SheetJS CE has no data validation API; the XLSX reader skips <dataValidations>`
DV: cross-sheet named range	write	edge	⊘	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`	`error=sheetjs does not support data_validation: SheetJS CE has no data validation API; the XLSX writer emits no <dataValidations>`
DV: custom formula	read	edge	⊘	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`error=sheetjs does not support data_validations: SheetJS CE has no data validation API; the XLSX reader skips <dataValidations>`
DV: custom formula	write	edge	⊘	`validation={'range': 'B5', 'validation_type': 'custom', 'formula1': '=B5>C5'}`	`error=sheetjs does not support data_validation: SheetJS CE has no data validation API; the XLSX writer emits no <dataValidations>`
DV: whole number with error	read	basic	⊘	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`error=sheetjs does not support data_validations: SheetJS CE has no data validation API; the XLSX reader skips <dataValidations>`
DV: whole number with error	write	basic	⊘	`validation={'range': 'B6', 'validation_type': 'whole', 'operator': 'between', 'formula1': '1', 'formula2': '10', 'allow_blank': False, 'error_title': 'Invalid', 'error': 'Enter 1-10'}`	`error=sheetjs does not support data_validation: SheetJS CE has no data validation API; the XLSX writer emits no <dataValidations>`

Freeze PanesTier 217 libraries · 45% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
exceljs	3	3	100%	—
libreoffice	3	2	83%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	read	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	read	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`
Split panes row=2 col=1	write	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`

xlsxwriter — 3/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	write	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`

aspose-cells-foss — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	read	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	read	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`
Split panes row=2 col=1	write	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`

wolfxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	read	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	read	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`
Split panes row=2 col=1	write	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`

xlsxwriter-constmem — 3/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	write	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`

exceljs — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	read	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	read	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`
Split panes row=2 col=1	write	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`

libreoffice — 5/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at B2	write	basic	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`
Freeze panes at D5	read	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Freeze panes at D5	write	edge	✓	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`
Split panes row=2 col=1	read	edge	✓	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`
Split panes row=2 col=1	write	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

python-calamine — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

pylightxl — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`error=expected string or bytes-like object, got 'NoneType'`
Freeze panes at B2	write	basic	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`error=pylightxl does not support set_freeze_panes: pylightxl does not implement this feature`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`error=expected string or bytes-like object, got 'NoneType'`
Freeze panes at D5	write	edge	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`error=pylightxl does not support set_freeze_panes: pylightxl does not implement this feature`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`error=expected string or bytes-like object, got 'NoneType'`
Split panes row=2 col=1	write	edge	⊘	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`error=pylightxl does not support set_freeze_panes: pylightxl does not implement this feature`

pyexcel — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at B2	write	basic	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`error=pyexcel does not support set_freeze_panes: pyexcel does not expose this worksheet feature`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	write	edge	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`error=pyexcel does not support set_freeze_panes: pyexcel does not expose this worksheet feature`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`
Split panes row=2 col=1	write	edge	⊘	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`error=pyexcel does not support set_freeze_panes: pyexcel does not expose this worksheet feature`

xlwt — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	write	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`error='Sheet' object has no attribute 'frozen_row_count'`
Freeze panes at D5	write	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`error='Sheet' object has no attribute 'frozen_row_count'`
Split panes row=2 col=1	write	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`error='Sheet' object has no attribute 'frozen_row_count'`

pandas — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at B2	write	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	write	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`
Split panes row=2 col=1	write	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

openpyxl-readonly — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

polars — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

tablib — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at B2	write	basic	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	read	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Freeze panes at D5	write	edge	✗	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`freeze={'mode': None, 'top_left_cell': None}`
Split panes row=2 col=1	read	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`
Split panes row=2 col=1	write	edge	✗	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

sheetjs — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Freeze panes at B2	read	basic	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`error=sheetjs does not support freeze_panes: SheetJS CE parses <sheetView> only for zoom and right-to-left; panes are not exposed`
Freeze panes at B2	write	basic	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'B2'}`	`error=sheetjs does not support freeze: SheetJS CE's XLSX writer emits <sheetView> without a <pane> element, so panes cannot be set`
Freeze panes at D5	read	edge	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`error=sheetjs does not support freeze_panes: SheetJS CE parses <sheetView> only for zoom and right-to-left; panes are not exposed`
Freeze panes at D5	write	edge	⊘	`freeze={'mode': 'freeze', 'top_left_cell': 'D5'}`	`error=sheetjs does not support freeze: SheetJS CE's XLSX writer emits <sheetView> without a <pane> element, so panes cannot be set`
Split panes row=2 col=1	read	edge	⊘	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`error=sheetjs does not support freeze_panes: SheetJS CE parses <sheetView> only for zoom and right-to-left; panes are not exposed`
Split panes row=2 col=1	write	edge	⊘	`freeze={'mode': 'split', 'x_split': 1, 'y_split': 2}`	`error=sheetjs does not support freeze: SheetJS CE's XLSX writer emits <sheetView> without a <pane> element, so panes cannot be set`

HyperlinksTier 217 libraries · 38% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	0	3	50%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
sheetjs	3	3	100%	—
exceljs	0	2	38%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
libreoffice	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

xlsxwriter — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	write	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

aspose-cells-foss — 4/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': None, 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': None, 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': None, 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': None, 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

wolfxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

xlsxwriter-constmem — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	write	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

sheetjs — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✓	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

exceljs — 3/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': None, 'internal': False}`
Hyperlink: external URL	write	basic	✓	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1#Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': False}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': None, 'internal': False}`
Hyperlink: mailto	write	basic	✓	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': None, 'internal': False}`
Hyperlink: long encoded URL	write	edge	✓	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

python-calamine — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

pylightxl — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`error=expected string or bytes-like object, got 'NoneType'`
Hyperlink: external URL	write	basic	⊘	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`error=pylightxl does not support add_hyperlink: pylightxl does not implement this feature`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`error=expected string or bytes-like object, got 'NoneType'`
Hyperlink: internal sheet	write	edge	⊘	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`error=pylightxl does not support add_hyperlink: pylightxl does not implement this feature`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`error=expected string or bytes-like object, got 'NoneType'`
Hyperlink: mailto	write	basic	⊘	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`error=pylightxl does not support add_hyperlink: pylightxl does not implement this feature`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`error=expected string or bytes-like object, got 'NoneType'`
Hyperlink: long encoded URL	write	edge	⊘	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`error=pylightxl does not support add_hyperlink: pylightxl does not implement this feature`

pyexcel — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	⊘	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`error=pyexcel does not support add_hyperlink: pyexcel does not expose this worksheet feature`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	⊘	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`error=pyexcel does not support add_hyperlink: pyexcel does not expose this worksheet feature`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	⊘	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`error=pyexcel does not support add_hyperlink: pyexcel does not expose this worksheet feature`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	⊘	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`error=pyexcel does not support add_hyperlink: pyexcel does not expose this worksheet feature`

xlwt — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	write	basic	⊘	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`error=xlwt does not support add_hyperlink: xlwt hyperlink metadata is not supported in this adapter`
Hyperlink: internal sheet	write	edge	⊘	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`error=xlwt does not support add_hyperlink: xlwt hyperlink metadata is not supported in this adapter`
Hyperlink: mailto	write	basic	⊘	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`error=xlwt does not support add_hyperlink: xlwt hyperlink metadata is not supported in this adapter`
Hyperlink: long encoded URL	write	edge	⊘	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`error=xlwt does not support add_hyperlink: xlwt hyperlink metadata is not supported in this adapter`

pandas — 0/8 test cases passed

Test	Op	Imp.	Result	Expected
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

openpyxl-readonly — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

polars — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

tablib — 0/8 test cases passed

Test	Op	Imp.	Result	Expected
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: external URL	write	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: internal sheet	write	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: mailto	write	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`
Hyperlink: long encoded URL	write	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`

libreoffice — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Hyperlink: external URL	read	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': None, 'internal': False}`
Hyperlink: external URL	write	basic	✗	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': 'Go to docs', 'internal': False}`	`hyperlink={'cell': 'B2', 'target': 'https://example.com/docs', 'display': 'Example Docs', 'tooltip': None, 'internal': False}`
Hyperlink: internal sheet	read	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': None, 'internal': True}`
Hyperlink: internal sheet	write	edge	✗	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': 'Jump to target', 'internal': True}`	`hyperlink={'cell': 'B3', 'target': 'Targets!A1', 'display': 'Go Target', 'tooltip': None, 'internal': True}`
Hyperlink: mailto	read	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': None, 'internal': False}`
Hyperlink: mailto	write	basic	✗	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': 'Send email', 'internal': False}`	`hyperlink={'cell': 'B4', 'target': 'mailto:test@example.com', 'display': 'Email', 'tooltip': None, 'internal': False}`
Hyperlink: long encoded URL	read	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': None, 'internal': False}`
Hyperlink: long encoded URL	write	edge	✗	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': 'Encoded URL', 'internal': False}`	`hyperlink={'cell': 'B5', 'target': 'https://example.com/search?q=excel%20bench&sort=desc#section-2', 'display': 'Search', 'tooltip': None, 'internal': False}`

ImagesTier 217 libraries · 27% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
libreoffice	3	3	100%	—
python-calamine	0	—	0%	—
aspose-cells-foss	0	0	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
exceljs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

xlsxwriter — 2/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	write	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

wolfxl — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

libreoffice — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	✓	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✓	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

python-calamine — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

aspose-cells-foss — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=aspose-cells-foss does not support read_images: aspose-cells-foss does not preserve the source one-cell versus two-cell anchor kind.`
Image: one-cell anchor	write	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=aspose-cells-foss does not support add_image: aspose-cells-foss writes only two-cell picture anchors, while the benchmark requires one-cell anchors.`
Image: two-cell anchor with offset	read	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=aspose-cells-foss does not support read_images: aspose-cells-foss does not preserve the source one-cell versus two-cell anchor kind.`
Image: two-cell anchor with offset	write	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=aspose-cells-foss does not support add_image: aspose-cells-foss writes only two-cell picture anchors, while the benchmark requires one-cell anchors.`

pylightxl — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=expected string or bytes-like object, got 'NoneType'`
Image: one-cell anchor	write	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=pylightxl does not support add_image: pylightxl does not implement this feature`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=expected string or bytes-like object, got 'NoneType'`
Image: two-cell anchor with offset	write	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=pylightxl does not support add_image: pylightxl does not implement this feature`

pyexcel — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=pyexcel does not support add_image: pyexcel does not expose this worksheet feature`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=pyexcel does not support add_image: pyexcel does not expose this worksheet feature`

xlwt — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	write	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=xlwt does not support add_image: xlwt cannot embed images in this adapter`
Image: two-cell anchor with offset	write	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=xlwt does not support add_image: xlwt cannot embed images in this adapter`

pandas — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

xlsxwriter-constmem — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	write	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

openpyxl-readonly — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

polars — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

tablib — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

sheetjs — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=sheetjs does not support images: SheetJS CE does not parse worksheet drawings, so embedded images are not exposed`
Image: one-cell anchor	write	basic	⊘	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=sheetjs does not support image: SheetJS CE cannot embed images (drawing parts are not written)`
Image: two-cell anchor with offset	read	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=sheetjs does not support images: SheetJS CE does not parse worksheet drawings, so embedded images are not exposed`
Image: two-cell anchor with offset	write	edge	⊘	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=sheetjs does not support image: SheetJS CE cannot embed images (drawing parts are not written)`

exceljs — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Image: one-cell anchor	read	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'anchors')`
Image: one-cell anchor	write	basic	✗	`image={'cell': 'B2', 'path': 'fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'anchors')`
Image: two-cell anchor with offset	write	edge	✗	`image={'cell': 'D6', 'path': 'fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

Merged CellsTier 217 libraries · 53% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
sheetjs	3	2	88%	—
exceljs	3	3	100%	—
libreoffice	3	3	100%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

xlsxwriter — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

aspose-cells-foss — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

wolfxl — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

xlsxwriter-constmem — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

sheetjs — 7/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill`

exceljs — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

libreoffice — 8/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✓	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✓	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✓	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✓	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

python-calamine — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

pylightxl — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	⊘	`merged_range=B2:D2, top_left_value=Merged`	`error=pylightxl does not support merge_cells: pylightxl does not implement this feature`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	⊘	`merged_range=B3:B5, top_left_value=Vertical`	`error=pylightxl does not support merge_cells: pylightxl does not implement this feature`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	⊘	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`error=pylightxl does not support merge_cells: pylightxl does not implement this feature`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	⊘	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`error=pylightxl does not support merge_cells: pylightxl does not implement this feature`

pyexcel — 0/8 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	⊘	`merged_range=B2:D2, top_left_value=Merged`	`error=pyexcel does not support merge_cells: pyexcel does not expose this worksheet feature`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	⊘	`merged_range=B3:B5, top_left_value=Vertical`	`error=pyexcel does not support merge_cells: pyexcel does not expose this worksheet feature`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	⊘	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`error=pyexcel does not support merge_cells: pyexcel does not expose this worksheet feature`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	⊘	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`error=pyexcel does not support merge_cells: pyexcel does not expose this worksheet feature`

xlwt — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Merge horizontal B2:D2	write	basic	✗	`merged_range=B2:D2, top_left_value=Merged`	`merged_range=B2:D2`
Merge vertical B3:B5	write	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`	`merged_range=B3:B5`
Merge with non-top-left value	write	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`	`merged_range=B6:D6, non_top_left_nonempty=0`
Merge with top-left fill	write	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`	`merged_range=B7:D7`

pandas — 0/8 test cases passed

Test	Op	Imp.	Result	Expected
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

openpyxl-readonly — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

polars — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

tablib — 0/8 test cases passed

Test	Op	Imp.	Result	Expected
Merge horizontal B2:D2	read	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge horizontal B2:D2	write	basic	✗	`merged_range=B2:D2, top_left_value=Merged`
Merge vertical B3:B5	read	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge vertical B3:B5	write	basic	✗	`merged_range=B3:B5, top_left_value=Vertical`
Merge with non-top-left value	read	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with non-top-left value	write	edge	✗	`merged_range=B6:D6, top_left_value=OffTop, non_top_left_nonempty=0`
Merge with top-left fill	read	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`
Merge with top-left fill	write	edge	✗	`merged_range=B7:D7, top_left_value=Fill, top_left_bg_color=#FF0000`

Pivot TablesTier 217 libraries · 0% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
xlsxwriter	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
python-calamine	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
aspose-cells-foss	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
wolfxl	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
pylightxl	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input
pyexcel	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
xlwt	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
pandas	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
xlsxwriter-constmem	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
openpyxl-readonly	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
polars	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
tablib	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
sheetjs	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
exceljs	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).
libreoffice	—	—	0%	Unsupported on macOS without a Windows-generated pivot fixture (fixtures/excel/tier2/15_pivot_tables.xlsx).

Tier 3 — Workbook Metadata

Named RangesTier 317 libraries · 44% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
aspose-cells-foss	2	3	92%	—
wolfxl	3	3	100%	—
sheetjs	3	3	100%	—
libreoffice	3	3	100%	—
exceljs	2	2	83%	—
xlsxwriter	—	0	0%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✓	`42`	`42`
Named range: single cell	write	basic	✓	`42`	`42`
Named range: cell range	read	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: cell range	write	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: used in formula	read	basic	✓	`0.08`	`0.08`
Named range: used in formula	write	basic	✓	`0.08`	`0.08`
Named range: sheet-scoped	read	edge	✓	`local`	`local`
Named range: sheet-scoped	write	edge	✓	`local`	`local`
Named range: cross-sheet reference	read	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: cross-sheet reference	write	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: underscore name	read	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`
Named range: underscore name	write	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`

aspose-cells-foss — 11/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✓	`42`	`42`
Named range: single cell	write	basic	✓	`42`	`42`
Named range: cell range	read	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: cell range	write	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: used in formula	read	basic	✓	`0.08`	`0.08`
Named range: used in formula	write	basic	✓	`0.08`	`0.08`
Named range: sheet-scoped	read	edge	✗	`local`	`None`
Named range: sheet-scoped	write	edge	✓	`local`	`local`
Named range: cross-sheet reference	read	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: cross-sheet reference	write	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: underscore name	read	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`
Named range: underscore name	write	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`

wolfxl — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✓	`42`	`42`
Named range: single cell	write	basic	✓	`42`	`42`
Named range: cell range	read	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: cell range	write	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: used in formula	read	basic	✓	`0.08`	`0.08`
Named range: used in formula	write	basic	✓	`0.08`	`0.08`
Named range: sheet-scoped	read	edge	✓	`local`	`local`
Named range: sheet-scoped	write	edge	✓	`local`	`local`
Named range: cross-sheet reference	read	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: cross-sheet reference	write	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: underscore name	read	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`
Named range: underscore name	write	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`

sheetjs — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✓	`42`	`42`
Named range: single cell	write	basic	✓	`42`	`42`
Named range: cell range	read	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: cell range	write	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: used in formula	read	basic	✓	`0.08`	`0.08`
Named range: used in formula	write	basic	✓	`0.08`	`0.08`
Named range: sheet-scoped	read	edge	✓	`local`	`local`
Named range: sheet-scoped	write	edge	✓	`local`	`local`
Named range: cross-sheet reference	read	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: cross-sheet reference	write	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: underscore name	read	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`
Named range: underscore name	write	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`

libreoffice — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✓	`42`	`42`
Named range: single cell	write	basic	✓	`42`	`42`
Named range: cell range	read	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: cell range	write	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: used in formula	read	basic	✓	`0.08`	`0.08`
Named range: used in formula	write	basic	✓	`0.08`	`0.08`
Named range: sheet-scoped	read	edge	✓	`local`	`local`
Named range: sheet-scoped	write	edge	✓	`local`	`local`
Named range: cross-sheet reference	read	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: cross-sheet reference	write	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: underscore name	read	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`
Named range: underscore name	write	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`

exceljs — 10/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✓	`42`	`42`
Named range: single cell	write	basic	✓	`42`	`42`
Named range: cell range	read	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: cell range	write	basic	✓	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`
Named range: used in formula	read	basic	✓	`0.08`	`0.08`
Named range: used in formula	write	basic	✓	`0.08`	`0.08`
Named range: sheet-scoped	read	edge	✗	`local`	`name=LocalName, scope=not_found`
Named range: sheet-scoped	write	edge	✗	`local`	`name=LocalName, scope=not_found`
Named range: cross-sheet reference	read	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: cross-sheet reference	write	edge	✓	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`
Named range: underscore name	read	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`
Named range: underscore name	write	edge	✓	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`

xlsxwriter — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	write	basic	⊘	`42`	`error=xlsxwriter does not implement named range writes`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=xlsxwriter does not implement named range writes`
Named range: used in formula	write	basic	⊘	`0.08`	`error=xlsxwriter does not implement named range writes`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=xlsxwriter does not implement named range writes`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=xlsxwriter does not implement named range writes`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=xlsxwriter does not implement named range writes`

python-calamine — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	⊘	`42`	`error=python-calamine does not implement named range reads`
Named range: cell range	read	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=python-calamine does not implement named range reads`
Named range: used in formula	read	basic	⊘	`0.08`	`error=python-calamine does not implement named range reads`
Named range: sheet-scoped	read	edge	⊘	`local`	`error=python-calamine does not implement named range reads`
Named range: cross-sheet reference	read	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=python-calamine does not implement named range reads`
Named range: underscore name	read	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=python-calamine does not implement named range reads`

pylightxl — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	✗	`42`	`error=expected string or bytes-like object, got 'NoneType'`
Named range: single cell	write	basic	⊘	`42`	`error=pylightxl does not implement named range writes`
Named range: cell range	read	basic	✗	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=expected string or bytes-like object, got 'NoneType'`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=pylightxl does not implement named range writes`
Named range: used in formula	read	basic	✗	`0.08`	`error=expected string or bytes-like object, got 'NoneType'`
Named range: used in formula	write	basic	⊘	`0.08`	`error=pylightxl does not implement named range writes`
Named range: sheet-scoped	read	edge	✗	`local`	`error=expected string or bytes-like object, got 'NoneType'`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=pylightxl does not implement named range writes`
Named range: cross-sheet reference	read	edge	✗	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=expected string or bytes-like object, got 'NoneType'`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=pylightxl does not implement named range writes`
Named range: underscore name	read	edge	✗	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=expected string or bytes-like object, got 'NoneType'`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=pylightxl does not implement named range writes`

pyexcel — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	⊘	`42`	`error=pyexcel does not implement named range reads`
Named range: single cell	write	basic	⊘	`42`	`error=pyexcel does not implement named range writes`
Named range: cell range	read	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=pyexcel does not implement named range reads`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=pyexcel does not implement named range writes`
Named range: used in formula	read	basic	⊘	`0.08`	`error=pyexcel does not implement named range reads`
Named range: used in formula	write	basic	⊘	`0.08`	`error=pyexcel does not implement named range writes`
Named range: sheet-scoped	read	edge	⊘	`local`	`error=pyexcel does not implement named range reads`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=pyexcel does not implement named range writes`
Named range: cross-sheet reference	read	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=pyexcel does not implement named range reads`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=pyexcel does not implement named range writes`
Named range: underscore name	read	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=pyexcel does not implement named range reads`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=pyexcel does not implement named range writes`

xlwt — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	write	basic	⊘	`42`	`error=xlwt does not implement named range writes`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=xlwt does not implement named range writes`
Named range: used in formula	write	basic	⊘	`0.08`	`error=xlwt does not implement named range writes`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=xlwt does not implement named range writes`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=xlwt does not implement named range writes`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=xlwt does not implement named range writes`

pandas — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	⊘	`42`	`error=pandas does not implement named range reads`
Named range: single cell	write	basic	⊘	`42`	`error=pandas does not implement named range writes`
Named range: cell range	read	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=pandas does not implement named range reads`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=pandas does not implement named range writes`
Named range: used in formula	read	basic	⊘	`0.08`	`error=pandas does not implement named range reads`
Named range: used in formula	write	basic	⊘	`0.08`	`error=pandas does not implement named range writes`
Named range: sheet-scoped	read	edge	⊘	`local`	`error=pandas does not implement named range reads`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=pandas does not implement named range writes`
Named range: cross-sheet reference	read	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=pandas does not implement named range reads`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=pandas does not implement named range writes`
Named range: underscore name	read	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=pandas does not implement named range reads`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=pandas does not implement named range writes`

xlsxwriter-constmem — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	write	basic	⊘	`42`	`error=xlsxwriter-constmem does not implement named range writes`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=xlsxwriter-constmem does not implement named range writes`
Named range: used in formula	write	basic	⊘	`0.08`	`error=xlsxwriter-constmem does not implement named range writes`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=xlsxwriter-constmem does not implement named range writes`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=xlsxwriter-constmem does not implement named range writes`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=xlsxwriter-constmem does not implement named range writes`

openpyxl-readonly — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	⊘	`42`	`error=openpyxl-readonly does not implement named range reads`
Named range: cell range	read	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=openpyxl-readonly does not implement named range reads`
Named range: used in formula	read	basic	⊘	`0.08`	`error=openpyxl-readonly does not implement named range reads`
Named range: sheet-scoped	read	edge	⊘	`local`	`error=openpyxl-readonly does not implement named range reads`
Named range: cross-sheet reference	read	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=openpyxl-readonly does not implement named range reads`
Named range: underscore name	read	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=openpyxl-readonly does not implement named range reads`

polars — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	⊘	`42`	`error=polars does not implement named range reads`
Named range: cell range	read	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=polars does not implement named range reads`
Named range: used in formula	read	basic	⊘	`0.08`	`error=polars does not implement named range reads`
Named range: sheet-scoped	read	edge	⊘	`local`	`error=polars does not implement named range reads`
Named range: cross-sheet reference	read	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=polars does not implement named range reads`
Named range: underscore name	read	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=polars does not implement named range reads`

tablib — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Named range: single cell	read	basic	⊘	`42`	`error=tablib does not implement named range reads`
Named range: single cell	write	basic	⊘	`42`	`error=tablib does not implement named range writes`
Named range: cell range	read	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=tablib does not implement named range reads`
Named range: cell range	write	basic	⊘	`name=DataRange, scope=workbook, refers_to=named_ranges!$B$3:$D$3`	`error=tablib does not implement named range writes`
Named range: used in formula	read	basic	⊘	`0.08`	`error=tablib does not implement named range reads`
Named range: used in formula	write	basic	⊘	`0.08`	`error=tablib does not implement named range writes`
Named range: sheet-scoped	read	edge	⊘	`local`	`error=tablib does not implement named range reads`
Named range: sheet-scoped	write	edge	⊘	`local`	`error=tablib does not implement named range writes`
Named range: cross-sheet reference	read	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=tablib does not implement named range reads`
Named range: cross-sheet reference	write	edge	⊘	`name=OtherSheet, scope=workbook, refers_to=Targets!$A$1`	`error=tablib does not implement named range writes`
Named range: underscore name	read	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=tablib does not implement named range reads`
Named range: underscore name	write	edge	⊘	`name=_my_range, scope=workbook, refers_to=named_ranges!$B$7`	`error=tablib does not implement named range writes`

TablesTier 317 libraries · 31% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
wolfxl	3	3	100%	—
exceljs	0	3	50%	—
libreoffice	3	2	92%	—
aspose-cells-foss	1	1	67%	—
xlsxwriter	—	0	0%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: basic 3-col	write	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: with totals row	read	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: with totals row	write	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: no style	read	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: no style	write	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: single column	read	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: single column	write	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: header only (no data rows)	read	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: header only (no data rows)	write	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: with autoFilter	read	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`
Table: with autoFilter	write	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`

wolfxl — 12/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: basic 3-col	write	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: with totals row	read	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: with totals row	write	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: no style	read	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: no style	write	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: single column	read	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: single column	write	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: header only (no data rows)	read	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: header only (no data rows)	write	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: with autoFilter	read	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`
Table: with autoFilter	write	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`

exceljs — 6/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	✗	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'name')`
Table: basic 3-col	write	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: with totals row	read	basic	✗	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'name')`
Table: with totals row	write	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: no style	read	basic	✗	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'name')`
Table: no style	write	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: single column	read	edge	✗	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'name')`
Table: single column	write	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: header only (no data rows)	read	edge	✗	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'name')`
Table: header only (no data rows)	write	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: with autoFilter	read	edge	✗	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'name')`
Table: with autoFilter	write	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`

libreoffice — 11/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: basic 3-col	write	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: with totals row	read	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: with totals row	write	basic	✓	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`
Table: no style	read	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: no style	write	basic	✓	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`
Table: single column	read	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: single column	write	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: header only (no data rows)	read	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: header only (no data rows)	write	edge	✗	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'not_found', 'header_row': True, 'totals_row': False, 'style': None, 'columns': []}`
Table: with autoFilter	read	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`
Table: with autoFilter	write	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`

aspose-cells-foss — 8/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: basic 3-col	write	basic	✓	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`
Table: with totals row	read	basic	✗	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': False, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 0}`
Table: with totals row	write	basic	✗	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': False, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 0}`
Table: no style	read	basic	✗	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Key', 'Value']}`
Table: no style	write	basic	✗	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Key', 'Value']}`
Table: single column	read	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: single column	write	edge	✓	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`
Table: header only (no data rows)	read	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: header only (no data rows)	write	edge	✓	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`
Table: with autoFilter	read	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`
Table: with autoFilter	write	edge	✓	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`

xlsxwriter — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=xlsxwriter does not implement table writes`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=xlsxwriter does not implement table writes`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=xlsxwriter does not implement table writes`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=xlsxwriter does not implement table writes`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=xlsxwriter does not implement table writes`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=xlsxwriter does not implement table writes`

python-calamine — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=python-calamine does not implement table reads`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=python-calamine does not implement table reads`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=python-calamine does not implement table reads`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=python-calamine does not implement table reads`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=python-calamine does not implement table reads`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=python-calamine does not implement table reads`

pylightxl — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	✗	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=expected string or bytes-like object, got 'NoneType'`
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=pylightxl does not implement table writes`
Table: with totals row	read	basic	✗	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=expected string or bytes-like object, got 'NoneType'`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=pylightxl does not implement table writes`
Table: no style	read	basic	✗	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=expected string or bytes-like object, got 'NoneType'`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=pylightxl does not implement table writes`
Table: single column	read	edge	✗	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=expected string or bytes-like object, got 'NoneType'`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=pylightxl does not implement table writes`
Table: header only (no data rows)	read	edge	✗	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=expected string or bytes-like object, got 'NoneType'`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=pylightxl does not implement table writes`
Table: with autoFilter	read	edge	✗	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=expected string or bytes-like object, got 'NoneType'`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=pylightxl does not implement table writes`

pyexcel — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=pyexcel does not implement table reads`
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=pyexcel does not implement table writes`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=pyexcel does not implement table reads`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=pyexcel does not implement table writes`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=pyexcel does not implement table reads`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=pyexcel does not implement table writes`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=pyexcel does not implement table reads`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=pyexcel does not implement table writes`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=pyexcel does not implement table reads`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=pyexcel does not implement table writes`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=pyexcel does not implement table reads`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=pyexcel does not implement table writes`

xlwt — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=xlwt does not implement table writes`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=xlwt does not implement table writes`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=xlwt does not implement table writes`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=xlwt does not implement table writes`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=xlwt does not implement table writes`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=xlwt does not implement table writes`

pandas — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=pandas does not implement table reads`
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=pandas does not implement table writes`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=pandas does not implement table reads`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=pandas does not implement table writes`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=pandas does not implement table reads`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=pandas does not implement table writes`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=pandas does not implement table reads`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=pandas does not implement table writes`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=pandas does not implement table reads`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=pandas does not implement table writes`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=pandas does not implement table reads`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=pandas does not implement table writes`

xlsxwriter-constmem — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=xlsxwriter-constmem does not implement table writes`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=xlsxwriter-constmem does not implement table writes`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=xlsxwriter-constmem does not implement table writes`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=xlsxwriter-constmem does not implement table writes`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=xlsxwriter-constmem does not implement table writes`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=xlsxwriter-constmem does not implement table writes`

openpyxl-readonly — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=openpyxl-readonly does not implement table reads`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=openpyxl-readonly does not implement table reads`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=openpyxl-readonly does not implement table reads`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=openpyxl-readonly does not implement table reads`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=openpyxl-readonly does not implement table reads`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=openpyxl-readonly does not implement table reads`

polars — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=polars does not implement table reads`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=polars does not implement table reads`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=polars does not implement table reads`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=polars does not implement table reads`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=polars does not implement table reads`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=polars does not implement table reads`

tablib — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=tablib does not implement table reads`
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=tablib does not implement table writes`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=tablib does not implement table reads`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=tablib does not implement table writes`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=tablib does not implement table reads`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=tablib does not implement table writes`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=tablib does not implement table reads`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=tablib does not implement table writes`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=tablib does not implement table reads`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=tablib does not implement table writes`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=tablib does not implement table reads`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=tablib does not implement table writes`

sheetjs — 0/12 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Table: basic 3-col	read	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=sheetjs does not support tables: SheetJS CE does not parse table parts (xl/tables/*.xml); only the sheet autofilter is exposed`
Table: basic 3-col	write	basic	⊘	`table={'name': 'SalesData', 'ref': 'E2:G5', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Name', 'Qty', 'Price']}`	`error=sheetjs does not support table: SheetJS CE cannot create table parts; only a sheet autofilter (ws['!autofilter']) is writable`
Table: with totals row	read	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=sheetjs does not support tables: SheetJS CE does not parse table parts (xl/tables/*.xml); only the sheet autofilter is exposed`
Table: with totals row	write	basic	⊘	`table={'name': 'Summary', 'ref': 'E7:G11', 'header_row': True, 'totals_row': True, 'style': 'TableStyleLight1', 'columns': ['Item', 'Count', 'Total'], 'totals_row_count': 1}`	`error=sheetjs does not support table: SheetJS CE cannot create table parts; only a sheet autofilter (ws['!autofilter']) is writable`
Table: no style	read	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=sheetjs does not support tables: SheetJS CE does not parse table parts (xl/tables/*.xml); only the sheet autofilter is exposed`
Table: no style	write	basic	⊘	`table={'name': 'PlainTable', 'ref': 'E13:F16', 'header_row': True, 'totals_row': False, 'style': None, 'columns': ['Key', 'Value']}`	`error=sheetjs does not support table: SheetJS CE cannot create table parts; only a sheet autofilter (ws['!autofilter']) is writable`
Table: single column	read	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=sheetjs does not support tables: SheetJS CE does not parse table parts (xl/tables/*.xml); only the sheet autofilter is exposed`
Table: single column	write	edge	⊘	`table={'name': 'SingleCol', 'ref': 'E18:E21', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium2', 'columns': ['Score']}`	`error=sheetjs does not support table: SheetJS CE cannot create table parts; only a sheet autofilter (ws['!autofilter']) is writable`
Table: header only (no data rows)	read	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=sheetjs does not support tables: SheetJS CE does not parse table parts (xl/tables/*.xml); only the sheet autofilter is exposed`
Table: header only (no data rows)	write	edge	⊘	`table={'name': 'EmptyTable', 'ref': 'E23:G23', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['A', 'B', 'C']}`	`error=sheetjs does not support table: SheetJS CE cannot create table parts; only a sheet autofilter (ws['!autofilter']) is writable`
Table: with autoFilter	read	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=sheetjs does not support tables: SheetJS CE does not parse table parts (xl/tables/*.xml); only the sheet autofilter is exposed`
Table: with autoFilter	write	edge	⊘	`table={'name': 'Filtered', 'ref': 'E25:G28', 'header_row': True, 'totals_row': False, 'style': 'TableStyleMedium9', 'columns': ['Region', 'Sales', 'Year'], 'autofilter': True}`	`error=sheetjs does not support table: SheetJS CE cannot create table parts; only a sheet autofilter (ws['!autofilter']) is writable`

Tier -1

chart_anchorTier -117 libraries · 23% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter	—	0	0%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
exceljs	0	0	0%	—
libreoffice	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	✓	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: bar with twoCell anchor	write	basic	✓	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: line with twoCell anchor	read	edge	✓	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: line with twoCell anchor	write	edge	✓	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`

aspose-cells-foss — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	✓	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: bar with twoCell anchor	write	basic	✓	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: line with twoCell anchor	read	edge	✓	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: line with twoCell anchor	write	edge	✓	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`

wolfxl — 4/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	✓	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: bar with twoCell anchor	write	basic	✓	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: line with twoCell anchor	read	edge	✓	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`
Chart: line with twoCell anchor	write	edge	✓	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12'}]`

xlsxwriter — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=xlsxwriter does not implement chart anchor writes`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=xlsxwriter does not implement chart anchor writes`

python-calamine — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=python-calamine does not implement chart anchor reads`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=python-calamine does not implement chart anchor reads`

pylightxl — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	✗	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=expected string or bytes-like object, got 'NoneType'`
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pylightxl does not implement chart anchor writes`
Chart: line with twoCell anchor	read	edge	✗	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=expected string or bytes-like object, got 'NoneType'`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pylightxl does not implement chart anchor writes`

pyexcel — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pyexcel does not implement chart anchor reads`
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pyexcel does not implement chart anchor writes`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pyexcel does not implement chart anchor reads`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pyexcel does not implement chart anchor writes`

xlwt — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=xlwt does not implement chart anchor writes`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=xlwt does not implement chart anchor writes`

pandas — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pandas does not implement chart anchor reads`
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pandas does not implement chart anchor writes`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pandas does not implement chart anchor reads`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=pandas does not implement chart anchor writes`

xlsxwriter-constmem — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=xlsxwriter-constmem does not implement chart anchor writes`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=xlsxwriter-constmem does not implement chart anchor writes`

openpyxl-readonly — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=openpyxl-readonly does not implement chart anchor reads`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=openpyxl-readonly does not implement chart anchor reads`

polars — 0/2 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=polars does not implement chart anchor reads`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=polars does not implement chart anchor reads`

tablib — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=tablib does not implement chart anchor reads`
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=tablib does not implement chart anchor writes`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=tablib does not implement chart anchor reads`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=tablib does not implement chart anchor writes`

sheetjs — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=sheetjs does not support chart_anchors: SheetJS CE does not parse charts or drawing anchors in worksheets`
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=sheetjs does not support chart: SheetJS CE cannot create charts`
Chart: line with twoCell anchor	read	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=sheetjs does not support chart_anchors: SheetJS CE does not parse charts or drawing anchors in worksheets`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=sheetjs does not support chart: SheetJS CE cannot create charts`

exceljs — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	✗	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'anchors')`
Chart: bar with twoCell anchor	write	basic	⊘	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=exceljs does not support chart: ExcelJS 4.4.0 has no chart creation API`
Chart: line with twoCell anchor	read	edge	✗	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=exceljs read_model failed: Cannot read properties of undefined (reading 'anchors')`
Chart: line with twoCell anchor	write	edge	⊘	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`error=exceljs does not support chart: ExcelJS 4.4.0 has no chart creation API`

libreoffice — 0/4 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Chart: bar with twoCell anchor	read	basic	✗	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'anchor_type': 'twoCell', 'from': 'B2', 'to': 'G11', 'type': 'bar'}, {'anchor_type': 'twoCell', 'from': 'J2', 'to': 'O11', 'type': 'line'}]`
Chart: bar with twoCell anchor	write	basic	✗	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'H12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'G11'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'O11'}]`
Chart: line with twoCell anchor	read	edge	✗	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'anchor_type': 'twoCell', 'from': 'B2', 'to': 'G11', 'type': 'bar'}, {'anchor_type': 'twoCell', 'from': 'J2', 'to': 'O11', 'type': 'line'}]`
Chart: line with twoCell anchor	write	edge	✗	`charts=[{'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'P12', 'data_ref': 'E2:E8', 'categories_ref': 'F2:F8'}]`	`charts=[{'type': 'bar', 'anchor_type': 'twoCell', 'from': 'B2', 'to': 'G11'}, {'type': 'line', 'anchor_type': 'twoCell', 'from': 'J2', 'to': 'O11'}]`

page_setupTier -117 libraries · 19% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
wolfxl	3	3	100%	—
aspose-cells-foss	1	0	17%	—
libreoffice	1	0	17%	—
xlsxwriter	—	0	0%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
sheetjs	0	0	0%	—
exceljs	0	0	17%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✓	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: landscape + fit-to-width	write	basic	✓	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	read	basic	✓	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	write	basic	✓	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: print titles + header/footer	read	edge	✓	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`
Page setup: print titles + header/footer	write	edge	✓	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`

wolfxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✓	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: landscape + fit-to-width	write	basic	✓	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	read	basic	✓	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	write	basic	✓	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: print titles + header/footer	read	edge	✓	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`
Page setup: print titles + header/footer	write	edge	✓	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`

aspose-cells-foss — 1/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': 100, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=aspose-cells-foss does not support set_page_setup: aspose-cells-foss has no print-title-rows API.`
Page setup: portrait at 75% scale	read	basic	✓	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=aspose-cells-foss does not support set_page_setup: aspose-cells-foss has no print-title-rows API.`
Page setup: print titles + header/footer	read	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 100, 'print_title_rows': None, 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=aspose-cells-foss does not support set_page_setup: aspose-cells-foss has no print-title-rows API.`

libreoffice — 1/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'fit_to_height': None, 'fit_to_width': None, 'footer_center': None, 'header_center': None, 'orientation': 'landscape', 'print_title_rows': None, 'scale': 100}`
Page setup: landscape + fit-to-width	write	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': 0, 'scale': 100, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	read	basic	✓	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'fit_to_height': None, 'fit_to_width': None, 'footer_center': None, 'header_center': None, 'orientation': 'portrait', 'print_title_rows': None, 'scale': 75}`
Page setup: portrait at 75% scale	write	basic	✗	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: print titles + header/footer	read	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'fit_to_height': None, 'fit_to_width': None, 'footer_center': 'Page &P', 'header_center': 'ExcelBench Report', 'orientation': 'portrait', 'print_title_rows': '$1:$2', 'scale': 100}`
Page setup: print titles + header/footer	write	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': 'portrait', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 100, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`

xlsxwriter — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=xlsxwriter does not implement page setup writes`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=xlsxwriter does not implement page setup writes`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=xlsxwriter does not implement page setup writes`

python-calamine — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=python-calamine does not implement page setup reads`
Page setup: portrait at 75% scale	read	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=python-calamine does not implement page setup reads`
Page setup: print titles + header/footer	read	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=python-calamine does not implement page setup reads`

pylightxl — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=expected string or bytes-like object, got 'NoneType'`
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pylightxl does not implement page setup writes`
Page setup: portrait at 75% scale	read	basic	✗	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=expected string or bytes-like object, got 'NoneType'`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pylightxl does not implement page setup writes`
Page setup: print titles + header/footer	read	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=expected string or bytes-like object, got 'NoneType'`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=pylightxl does not implement page setup writes`

pyexcel — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pyexcel does not implement page setup reads`
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pyexcel does not implement page setup writes`
Page setup: portrait at 75% scale	read	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pyexcel does not implement page setup reads`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pyexcel does not implement page setup writes`
Page setup: print titles + header/footer	read	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=pyexcel does not implement page setup reads`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=pyexcel does not implement page setup writes`

xlwt — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=xlwt does not implement page setup writes`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=xlwt does not implement page setup writes`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=xlwt does not implement page setup writes`

pandas — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pandas does not implement page setup reads`
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pandas does not implement page setup writes`
Page setup: portrait at 75% scale	read	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pandas does not implement page setup reads`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=pandas does not implement page setup writes`
Page setup: print titles + header/footer	read	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=pandas does not implement page setup reads`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=pandas does not implement page setup writes`

xlsxwriter-constmem — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=xlsxwriter-constmem does not implement page setup writes`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=xlsxwriter-constmem does not implement page setup writes`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=xlsxwriter-constmem does not implement page setup writes`

openpyxl-readonly — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=openpyxl-readonly does not implement page setup reads`
Page setup: portrait at 75% scale	read	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=openpyxl-readonly does not implement page setup reads`
Page setup: print titles + header/footer	read	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=openpyxl-readonly does not implement page setup reads`

polars — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=polars does not implement page setup reads`
Page setup: portrait at 75% scale	read	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=polars does not implement page setup reads`
Page setup: print titles + header/footer	read	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=polars does not implement page setup reads`

tablib — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=tablib does not implement page setup reads`
Page setup: landscape + fit-to-width	write	basic	⊘	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=tablib does not implement page setup writes`
Page setup: portrait at 75% scale	read	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=tablib does not implement page setup reads`
Page setup: portrait at 75% scale	write	basic	⊘	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`error=tablib does not implement page setup writes`
Page setup: print titles + header/footer	read	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=tablib does not implement page setup reads`
Page setup: print titles + header/footer	write	edge	⊘	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`error=tablib does not implement page setup writes`

sheetjs — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={}`
Page setup: landscape + fit-to-width	write	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	read	basic	✗	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={}`
Page setup: portrait at 75% scale	write	basic	✗	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: print titles + header/footer	read	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'print_title_rows': '$1:$2'}`
Page setup: print titles + header/footer	write	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': None, 'footer_center': None}`

exceljs — 1/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Page setup: landscape + fit-to-width	read	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 100, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: landscape + fit-to-width	write	basic	✗	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': None, 'scale': None, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'landscape', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 100, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	read	basic	✗	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: portrait at 75% scale	write	basic	✗	`page_setup={'orientation': 'portrait', 'fit_to_width': None, 'fit_to_height': None, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`	`page_setup={'orientation': 'portrait', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 75, 'print_title_rows': None, 'header_center': None, 'footer_center': None}`
Page setup: print titles + header/footer	read	edge	✓	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`
Page setup: print titles + header/footer	write	edge	✗	`page_setup={'orientation': None, 'fit_to_width': None, 'fit_to_height': None, 'scale': None, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`	`page_setup={'orientation': 'portrait', 'fit_to_width': 1, 'fit_to_height': 1, 'scale': 100, 'print_title_rows': '$1:$2', 'header_center': 'ExcelBench Report', 'footer_center': 'Page &P'}`

sheet_protectionTier -117 libraries · 36% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
aspose-cells-foss	3	3	100%	—
wolfxl	3	3	100%	—
sheetjs	0	3	50%	—
exceljs	1	3	83%	—
libreoffice	0	2	33%	—
xlsxwriter	—	0	0%	—
python-calamine	0	—	0%	—
pylightxl	0	0	0%	—
pyexcel	0	0	0%	—
xlwt	—	0	0%	—
pandas	0	0	0%	—
xlsxwriter-constmem	—	0	0%	—
openpyxl-readonly	0	—	0%	—
polars	0	—	0%	—
tablib	0	0	0%	—
xlrd	—	—	0%	Not applicable: xlrd does not support .xlsx input

openpyxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: basic (OOXML defaults)	write	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	read	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	write	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: granular attribute flags	read	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`
Protection: granular attribute flags	write	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`

aspose-cells-foss — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: basic (OOXML defaults)	write	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	read	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	write	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: granular attribute flags	read	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`
Protection: granular attribute flags	write	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`

wolfxl — 6/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: basic (OOXML defaults)	write	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	read	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	write	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: granular attribute flags	read	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`
Protection: granular attribute flags	write	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`

sheetjs — 3/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=sheetjs does not support sheet_protection: SheetJS CE's XLSX reader does not parse <sheetProtection>; ws['!protect'] is populated only for XLS/XLSB/XLML inputs`
Protection: basic (OOXML defaults)	write	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=sheetjs does not support sheet_protection: SheetJS CE's XLSX reader does not parse <sheetProtection>; ws['!protect'] is populated only for XLS/XLSB/XLML inputs`
Protection: with password hash	write	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=sheetjs does not support sheet_protection: SheetJS CE's XLSX reader does not parse <sheetProtection>; ws['!protect'] is populated only for XLS/XLSB/XLML inputs`
Protection: granular attribute flags	write	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`

exceljs — 5/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: basic (OOXML defaults)	write	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	read	basic	✗	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	write	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: granular attribute flags	read	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`
Protection: granular attribute flags	write	edge	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`

libreoffice — 2/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	✗	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'auto_filter': None, 'format_cells': None, 'insert_rows': None, 'password_hash_present': False, 'protected': True, 'select_locked_cells': None, 'select_unlocked_cells': None, 'sort': None}`
Protection: basic (OOXML defaults)	write	basic	✓	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: with password hash	read	basic	✗	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'auto_filter': None, 'format_cells': None, 'insert_rows': None, 'password_hash_present': True, 'protected': True, 'select_locked_cells': None, 'select_unlocked_cells': None, 'sort': None}`
Protection: with password hash	write	basic	✓	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`
Protection: granular attribute flags	read	edge	✗	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'auto_filter': None, 'format_cells': None, 'insert_rows': None, 'password_hash_present': False, 'protected': True, 'select_locked_cells': None, 'select_unlocked_cells': None, 'sort': None}`
Protection: granular attribute flags	write	edge	✗	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`

xlsxwriter — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=xlsxwriter does not implement sheet protection writes`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=xlsxwriter does not implement sheet protection writes`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=xlsxwriter does not implement sheet protection writes`

python-calamine — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=python-calamine does not implement sheet protection reads`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=python-calamine does not implement sheet protection reads`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=python-calamine does not implement sheet protection reads`

pylightxl — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	✗	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=expected string or bytes-like object, got 'NoneType'`
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=pylightxl does not implement sheet protection writes`
Protection: with password hash	read	basic	✗	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=expected string or bytes-like object, got 'NoneType'`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=pylightxl does not implement sheet protection writes`
Protection: granular attribute flags	read	edge	✗	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=expected string or bytes-like object, got 'NoneType'`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=pylightxl does not implement sheet protection writes`

pyexcel — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=pyexcel does not implement sheet protection reads`
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=pyexcel does not implement sheet protection writes`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=pyexcel does not implement sheet protection reads`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=pyexcel does not implement sheet protection writes`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=pyexcel does not implement sheet protection reads`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=pyexcel does not implement sheet protection writes`

xlwt — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=xlwt does not implement sheet protection writes`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=xlwt does not implement sheet protection writes`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=xlwt does not implement sheet protection writes`

pandas — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=pandas does not implement sheet protection reads`
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=pandas does not implement sheet protection writes`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=pandas does not implement sheet protection reads`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=pandas does not implement sheet protection writes`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=pandas does not implement sheet protection reads`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=pandas does not implement sheet protection writes`

xlsxwriter-constmem — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=xlsxwriter-constmem does not implement sheet protection writes`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=xlsxwriter-constmem does not implement sheet protection writes`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=xlsxwriter-constmem does not implement sheet protection writes`

openpyxl-readonly — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=openpyxl-readonly does not implement sheet protection reads`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=openpyxl-readonly does not implement sheet protection reads`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=openpyxl-readonly does not implement sheet protection reads`

polars — 0/3 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=polars does not implement sheet protection reads`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=polars does not implement sheet protection reads`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=polars does not implement sheet protection reads`

tablib — 0/6 test cases passed

Test	Op	Imp.	Result	Expected	Actual
Protection: basic (OOXML defaults)	read	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=tablib does not implement sheet protection reads`
Protection: basic (OOXML defaults)	write	basic	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True}`	`error=tablib does not implement sheet protection writes`
Protection: with password hash	read	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=tablib does not implement sheet protection reads`
Protection: with password hash	write	basic	⊘	`protection={'protected': True, 'password_hash_present': True, 'format_cells': True, 'insert_rows': True, 'select_locked_cells': False, 'select_unlocked_cells': False, 'sort': True, 'auto_filter': True, 'password': 'bench-secret'}`	`error=tablib does not implement sheet protection writes`
Protection: granular attribute flags	read	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=tablib does not implement sheet protection reads`
Protection: granular attribute flags	write	edge	⊘	`protection={'protected': True, 'password_hash_present': False, 'format_cells': False, 'insert_rows': True, 'select_locked_cells': True, 'select_unlocked_cells': False, 'sort': False, 'auto_filter': True}`	`error=tablib does not implement sheet protection writes`

Performance Benchmarks

Warmup: 3 · Iterations: 25 · Iteration Policy: fixed · Breakdown: No · Platform: Darwin-arm64 · Python: 3.12.3

alignment — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.0ms	0.1ms	0.0ms	0.0ms	188.8	20K
polars	0.2ms	0.3ms	0.2ms	0.5ms	189.1	4K
wolfxl	0.7ms	0.7ms	0.6ms	0.7ms	188.8	1K
openpyxl-readonly	1.0ms	1.0ms	0.9ms	1.0ms	189.1	1K
openpyxl	1.2ms	1.3ms	1.2ms	1.2ms	188.8	826
tablib	1.2ms	1.3ms	1.2ms	1.2ms	189.2	804
pyexcel	1.3ms	1.3ms	1.2ms	1.3ms	189.0	790
pandas	1.4ms	1.5ms	1.4ms	1.4ms	189.1	693

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.4ms	0.2ms	0.2ms	189.0	4K
wolfxl	0.6ms	0.7ms	0.5ms	0.6ms	188.8	2K
tablib	1.2ms	1.4ms	1.2ms	1.2ms	189.2	820
openpyxl	1.4ms	1.4ms	1.3ms	1.4ms	188.8	733
pandas	1.4ms	1.6ms	1.4ms	1.4ms	189.1	695
xlsxwriter-constmem	1.7ms	2.2ms	1.6ms	1.6ms	189.1	582
xlsxwriter	1.8ms	2.2ms	1.6ms	1.7ms	188.8	556

background_colors — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	187.2	18K
polars	0.2ms	0.3ms	0.2ms	0.5ms	187.5	4K
wolfxl	0.6ms	0.6ms	0.6ms	0.6ms	187.2	2K
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	187.5	1K
pylightxl	0.9ms	0.9ms	0.9ms	0.9ms	187.3	1K
openpyxl	1.0ms	1.0ms	1.0ms	1.0ms	187.2	991
tablib	1.0ms	1.1ms	1.0ms	1.0ms	187.5	966
pyexcel	1.1ms	1.1ms	1.0ms	1.1ms	187.3	928
pandas	1.3ms	1.4ms	1.2ms	1.3ms	187.5	791

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.4ms	0.2ms	0.2ms	187.3	4K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	187.2	2K
tablib	1.2ms	1.2ms	1.2ms	1.2ms	187.5	838
openpyxl	1.3ms	1.4ms	1.2ms	1.3ms	187.2	771
pandas	1.4ms	1.6ms	1.4ms	1.4ms	187.5	694
xlsxwriter-constmem	1.7ms	2.0ms	1.6ms	1.7ms	187.5	598
xlsxwriter	1.8ms	2.3ms	1.6ms	1.7ms	187.2	569

borders — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	189.2	15K
polars	0.3ms	0.3ms	0.2ms	0.5ms	189.4	4K
wolfxl	1.0ms	1.1ms	1.0ms	1.0ms	189.2	972
openpyxl-readonly	1.3ms	1.4ms	1.3ms	1.3ms	189.3	762
pyexcel	1.8ms	2.3ms	1.7ms	1.8ms	189.3	558
tablib	1.8ms	2.2ms	1.8ms	1.8ms	189.4	555
openpyxl	1.9ms	2.0ms	1.7ms	1.9ms	189.2	540
pandas	2.0ms	2.3ms	2.0ms	2.0ms	189.3	489

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.4ms	0.6ms	0.4ms	0.4ms	189.3	2K
wolfxl	0.8ms	0.9ms	0.8ms	0.8ms	189.3	1K
tablib	1.4ms	1.5ms	1.3ms	1.4ms	189.4	732
pandas	1.6ms	1.8ms	1.5ms	1.6ms	189.3	628
openpyxl	2.1ms	2.4ms	2.1ms	2.1ms	189.2	466
xlsxwriter	2.2ms	2.6ms	2.0ms	2.1ms	189.2	456
xlsxwriter-constmem	2.3ms	2.6ms	2.0ms	2.1ms	189.3	431

cell_values — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
polars	0.4ms	0.7ms	0.4ms	0.7ms	183.2	2K
python-calamine	0.7ms	0.7ms	0.6ms	0.7ms	164.7	2K
wolfxl	0.7ms	0.7ms	0.7ms	0.7ms	165.9	1K
openpyxl	1.3ms	1.6ms	1.3ms	1.3ms	163.8	772
pylightxl	1.3ms	1.3ms	1.3ms	1.3ms	166.6	759
tablib	1.4ms	1.7ms	1.4ms	1.4ms	183.5	701
pyexcel	1.5ms	1.5ms	1.5ms	1.5ms	166.7	671
pandas	1.8ms	1.9ms	1.7ms	1.8ms	167.3	563
openpyxl-readonly	5.9ms	6.2ms	5.9ms	5.9ms	168.8	169

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.3ms	0.3ms	0.3ms	0.3ms	166.8	4K
wolfxl	0.6ms	0.7ms	0.6ms	0.6ms	166.6	2K
openpyxl	1.3ms	1.5ms	1.2ms	1.3ms	164.1	774
tablib	1.4ms	1.4ms	1.3ms	1.4ms	183.7	739
pandas	1.6ms	1.9ms	1.5ms	1.6ms	167.8	635
xlsxwriter	1.7ms	2.0ms	1.6ms	1.7ms	164.2	589
xlsxwriter-constmem	1.7ms	2.0ms	1.6ms	1.7ms	167.9	577

comments — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	192.8	16K
polars	0.2ms	0.3ms	0.2ms	0.5ms	192.8	4K
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	192.8	1K
tablib	1.0ms	1.1ms	0.9ms	1.0ms	192.8	986
pylightxl	1.1ms	1.1ms	1.1ms	1.1ms	192.8	892
openpyxl	1.1ms	1.2ms	1.1ms	1.1ms	192.8	881
wolfxl	1.1ms	1.2ms	1.1ms	1.1ms	192.8	877
pyexcel	1.1ms	1.2ms	1.1ms	1.1ms	192.8	871
pandas	1.3ms	1.4ms	1.2ms	1.3ms	192.8	791

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
wolfxl	0.6ms	0.7ms	0.6ms	0.6ms	192.8	2K
tablib	1.1ms	1.2ms	1.1ms	1.1ms	192.8	895
pandas	1.2ms	1.4ms	1.2ms	1.2ms	192.8	806
xlsxwriter-constmem	1.5ms	1.8ms	1.4ms	1.5ms	192.8	669
openpyxl	1.5ms	1.8ms	1.4ms	1.5ms	192.8	654
xlsxwriter	2.1ms	2.5ms	2.0ms	2.1ms	192.8	481

conditional_formatting — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	190.1	19K
polars	0.4ms	0.5ms	0.3ms	0.9ms	191.3	3K
openpyxl-readonly	1.0ms	1.0ms	0.9ms	1.0ms	191.3	1K
wolfxl	1.0ms	1.1ms	1.0ms	1.0ms	190.7	979
openpyxl	1.4ms	1.4ms	1.3ms	1.4ms	190.1	725
tablib	1.4ms	1.6ms	1.4ms	1.4ms	191.3	690
pyexcel	1.5ms	1.5ms	1.4ms	1.5ms	191.2	685
pandas	1.8ms	1.8ms	1.7ms	1.8ms	191.2	569

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
wolfxl	0.6ms	0.7ms	0.6ms	0.6ms	190.8	2K
tablib	1.4ms	1.5ms	1.4ms	1.4ms	191.3	714
pandas	1.5ms	1.7ms	1.5ms	1.5ms	191.3	648
openpyxl	1.7ms	1.8ms	1.6ms	1.7ms	190.1	599
xlsxwriter	1.7ms	2.1ms	1.6ms	1.7ms	190.1	596
xlsxwriter-constmem	2.1ms	2.5ms	1.8ms	2.0ms	191.3	480

data_validation — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	191.3	20K
polars	0.5ms	0.6ms	0.4ms	1.8ms	191.5	2K
wolfxl	0.6ms	0.6ms	0.6ms	0.6ms	191.3	2K
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	191.3	1K
openpyxl	1.2ms	1.4ms	1.2ms	1.2ms	191.3	829
tablib	1.3ms	1.3ms	1.2ms	1.3ms	191.5	773
pyexcel	1.3ms	1.3ms	1.3ms	1.3ms	191.3	756
pandas	1.6ms	1.8ms	1.6ms	1.6ms	191.3	609

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	191.3	2K
tablib	1.1ms	1.2ms	1.1ms	1.1ms	191.5	885
openpyxl	1.2ms	1.3ms	1.2ms	1.2ms	191.3	818
pandas	1.3ms	1.4ms	1.2ms	1.3ms	191.3	789
xlsxwriter	1.5ms	1.9ms	1.4ms	1.4ms	191.3	662
xlsxwriter-constmem	1.6ms	1.9ms	1.5ms	1.6ms	191.3	625

dimensions — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	189.4	18K
polars	0.3ms	0.5ms	0.2ms	1.1ms	189.7	3K
wolfxl	0.5ms	0.6ms	0.5ms	0.6ms	189.4	2K
openpyxl-readonly	0.8ms	0.9ms	0.7ms	0.8ms	189.4	1K
pylightxl	0.9ms	0.9ms	0.8ms	0.9ms	189.4	1K
openpyxl	1.0ms	1.0ms	0.9ms	1.0ms	189.4	1K
tablib	1.0ms	1.0ms	0.9ms	1.0ms	189.7	1K
pyexcel	1.0ms	1.1ms	1.0ms	1.0ms	189.4	956
pandas	1.2ms	1.3ms	1.2ms	1.2ms	189.4	802

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.4ms	0.1ms	0.2ms	189.4	6K
wolfxl	0.5ms	0.7ms	0.5ms	0.5ms	189.4	2K
tablib	1.2ms	1.3ms	1.1ms	1.1ms	189.7	864
openpyxl	1.2ms	1.3ms	1.1ms	1.2ms	189.4	863
pandas	1.3ms	1.4ms	1.2ms	1.3ms	189.4	772
xlsxwriter	1.4ms	1.8ms	1.4ms	1.4ms	189.4	708
xlsxwriter-constmem	1.7ms	2.0ms	1.5ms	1.5ms	189.4	583

formulas — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	183.9	7K
polars	0.4ms	0.5ms	0.3ms	0.9ms	185.1	3K
wolfxl	0.6ms	0.7ms	0.6ms	0.6ms	184.0	2K
pylightxl	1.1ms	1.2ms	1.0ms	1.1ms	184.0	886
openpyxl	1.1ms	1.2ms	1.1ms	1.1ms	183.8	877
tablib	1.2ms	1.3ms	1.1ms	1.2ms	185.1	839
pyexcel	1.3ms	1.3ms	1.2ms	1.3ms	184.2	794
openpyxl-readonly	1.5ms	1.6ms	1.5ms	1.5ms	184.6	671
pandas	1.6ms	1.7ms	1.5ms	1.6ms	184.4	630

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
pylightxl	0.3ms	0.3ms	0.2ms	0.3ms	184.0	4K
xlwt	0.3ms	0.3ms	0.3ms	0.3ms	184.3	4K
wolfxl	0.7ms	0.7ms	0.6ms	0.7ms	184.0	2K
openpyxl	1.4ms	1.6ms	1.4ms	1.4ms	183.8	711
tablib	1.4ms	1.7ms	1.4ms	1.4ms	185.4	697
pyexcel	1.5ms	1.5ms	1.4ms	1.5ms	184.3	688
xlsxwriter	1.6ms	2.1ms	1.5ms	1.6ms	183.9	623
pandas	1.7ms	1.8ms	1.6ms	1.7ms	184.5	600
xlsxwriter-constmem	1.8ms	2.2ms	1.7ms	1.8ms	184.5	567

freeze_panes — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	192.8	19K
polars	0.4ms	0.6ms	0.4ms	0.8ms	192.8	2K
wolfxl	0.7ms	0.8ms	0.7ms	0.7ms	192.8	1K
openpyxl-readonly	1.0ms	1.0ms	0.9ms	1.0ms	192.8	1K
openpyxl	1.4ms	1.8ms	1.3ms	1.4ms	192.8	728
tablib	1.4ms	1.6ms	1.4ms	1.4ms	192.8	713
pyexcel	1.5ms	1.9ms	1.4ms	1.5ms	192.8	674
pandas	1.8ms	1.9ms	1.8ms	1.8ms	192.8	555

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	192.8	5K
wolfxl	0.7ms	1.0ms	0.7ms	0.7ms	192.8	1K
xlsxwriter	1.9ms	2.3ms	1.8ms	1.9ms	192.8	532
openpyxl	1.9ms	2.1ms	1.9ms	1.9ms	192.8	525
tablib	1.9ms	2.1ms	1.9ms	1.9ms	192.9	523
pandas	2.1ms	2.3ms	2.0ms	2.1ms	192.8	482
xlsxwriter-constmem	2.1ms	2.6ms	2.0ms	2.1ms	192.8	475

hyperlinks — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.0ms	0.1ms	0.0ms	0.0ms	191.5	21K
polars	0.4ms	0.5ms	0.3ms	0.9ms	191.7	3K
openpyxl-readonly	0.9ms	1.0ms	0.8ms	0.9ms	191.6	1K
wolfxl	1.1ms	1.2ms	1.1ms	1.1ms	191.6	872
openpyxl	1.2ms	1.2ms	1.2ms	1.2ms	191.5	840
tablib	1.2ms	1.3ms	1.1ms	1.2ms	191.7	817
pyexcel	1.3ms	1.4ms	1.2ms	1.3ms	191.6	783
pandas	1.5ms	1.6ms	1.5ms	1.5ms	191.6	647

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	191.6	2K
tablib	1.1ms	1.2ms	1.1ms	1.1ms	191.7	879
openpyxl	1.3ms	1.4ms	1.2ms	1.3ms	191.5	794
pandas	1.3ms	1.4ms	1.2ms	1.3ms	191.6	783
xlsxwriter	1.7ms	1.9ms	1.7ms	1.7ms	191.5	573
xlsxwriter-constmem	1.8ms	2.1ms	1.7ms	1.8ms	191.6	551

images — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.0ms	0.1ms	0.0ms	0.0ms	192.8	20K
polars	0.2ms	0.3ms	0.2ms	0.4ms	192.8	5K
openpyxl-readonly	0.8ms	0.8ms	0.7ms	0.8ms	192.8	1K
wolfxl	0.9ms	0.9ms	0.8ms	0.9ms	192.8	1K
tablib	0.9ms	1.0ms	0.9ms	0.9ms	192.8	1K
pandas	1.2ms	1.3ms	1.1ms	1.2ms	192.8	864
pyexcel	1.2ms	1.3ms	1.1ms	1.2ms	192.8	828
openpyxl	1.6ms	2.1ms	1.3ms	1.6ms	192.8	614

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
wolfxl	0.7ms	0.7ms	0.7ms	0.7ms	192.8	1K
tablib	1.1ms	1.2ms	1.1ms	1.1ms	192.8	875
pandas	1.3ms	1.4ms	1.2ms	1.3ms	192.8	793
xlsxwriter-constmem	1.5ms	2.0ms	1.4ms	1.5ms	192.8	678
openpyxl	1.6ms	1.8ms	1.6ms	1.6ms	192.8	617
xlsxwriter	2.5ms	2.9ms	2.2ms	2.5ms	192.8	402

merged_cells — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	190.1	18K
polars	0.2ms	0.3ms	0.2ms	0.5ms	190.1	4K
wolfxl	0.8ms	0.9ms	0.8ms	0.8ms	190.1	1K
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	190.1	1K
pylightxl	1.0ms	1.0ms	0.9ms	1.0ms	190.1	1K
tablib	1.1ms	1.1ms	1.0ms	1.1ms	190.1	937
openpyxl	1.2ms	1.3ms	1.2ms	1.2ms	190.1	808
pyexcel	1.3ms	1.4ms	1.2ms	1.3ms	190.1	764
pandas	1.3ms	1.3ms	1.2ms	1.3ms	190.1	760

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.4ms	0.2ms	0.2ms	190.1	5K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	190.1	2K
tablib	1.2ms	1.2ms	1.1ms	1.2ms	190.1	862
openpyxl	1.3ms	1.6ms	1.3ms	1.3ms	190.1	752
pandas	1.4ms	1.6ms	1.3ms	1.4ms	190.1	699
xlsxwriter-constmem	1.6ms	2.0ms	1.5ms	1.6ms	190.1	626
xlsxwriter	1.6ms	2.1ms	1.5ms	1.6ms	190.1	608

multiple_sheets — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	189.7	18K
polars	0.5ms	0.6ms	0.4ms	1.4ms	190.1	2K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	189.7	2K
openpyxl-readonly	1.0ms	1.0ms	0.9ms	1.0ms	190.0	992
openpyxl	1.3ms	1.3ms	1.2ms	1.3ms	189.7	781
pylightxl	1.3ms	1.3ms	1.3ms	1.3ms	189.8	765
tablib	1.3ms	1.5ms	1.3ms	1.3ms	190.1	742
pyexcel	1.4ms	1.5ms	1.4ms	1.4ms	189.8	713
pandas	1.8ms	1.9ms	1.8ms	1.8ms	189.9	558

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	189.9	5K
pylightxl	0.3ms	0.4ms	0.3ms	0.3ms	189.8	3K
wolfxl	0.6ms	0.6ms	0.5ms	0.6ms	189.8	2K
tablib	1.7ms	1.9ms	1.6ms	1.7ms	190.1	591
pyexcel	1.7ms	2.0ms	1.7ms	1.7ms	189.8	583
openpyxl	1.8ms	1.9ms	1.6ms	1.6ms	189.7	571
xlsxwriter	2.0ms	2.7ms	1.8ms	1.9ms	189.7	507
xlsxwriter-constmem	2.1ms	2.5ms	1.9ms	2.0ms	190.0	484
pandas	2.1ms	2.3ms	2.0ms	2.1ms	189.9	480

named_ranges — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.0ms	0.1ms	0.0ms	0.0ms	192.9	21K
polars	0.4ms	0.5ms	0.3ms	1.2ms	193.2	3K
wolfxl	0.5ms	0.5ms	0.5ms	0.5ms	192.9	2K
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	193.1	1K
openpyxl	1.1ms	1.1ms	1.0ms	1.1ms	192.9	901
tablib	1.2ms	1.2ms	1.1ms	1.2ms	193.2	841
pyexcel	1.2ms	1.3ms	1.2ms	1.2ms	193.1	805
pandas	1.6ms	2.1ms	1.5ms	1.6ms	193.1	636

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.2ms	0.1ms	0.2ms	193.1	6K
pylightxl	0.2ms	0.3ms	0.2ms	0.2ms	192.9	4K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	192.9	2K
tablib	1.4ms	3.6ms	1.3ms	1.4ms	193.3	736
openpyxl	1.4ms	1.5ms	1.4ms	1.4ms	192.9	710
pyexcel	1.5ms	4.8ms	1.4ms	1.5ms	193.1	672
xlsxwriter	1.6ms	2.0ms	1.5ms	1.6ms	192.9	637
xlsxwriter-constmem	1.7ms	2.2ms	1.6ms	1.7ms	193.1	594
pandas	1.8ms	2.0ms	1.6ms	1.8ms	193.1	563

number_formats — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	187.5	18K
polars	0.2ms	0.3ms	0.2ms	0.4ms	188.5	4K
wolfxl	0.6ms	0.7ms	0.6ms	0.6ms	187.5	2K
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	188.5	1K
pylightxl	0.9ms	1.0ms	0.9ms	0.9ms	187.6	1K
openpyxl	1.0ms	1.1ms	1.0ms	1.0ms	187.5	966
tablib	1.0ms	1.1ms	1.0ms	1.0ms	188.5	954
pyexcel	1.1ms	1.2ms	1.0ms	1.1ms	188.1	914
pandas	1.3ms	1.3ms	1.2ms	1.3ms	188.4	787

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.3ms	0.2ms	0.2ms	188.1	4K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	187.5	2K
tablib	1.2ms	1.4ms	1.1ms	1.2ms	188.5	848
openpyxl	1.3ms	1.4ms	1.2ms	1.3ms	187.5	786
pandas	1.4ms	1.4ms	1.3ms	1.4ms	188.5	717
xlsxwriter	1.6ms	1.9ms	1.5ms	1.6ms	187.5	632
xlsxwriter-constmem	1.7ms	2.1ms	1.6ms	1.7ms	188.5	588

pivot_tables — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	192.8	20K
polars	0.2ms	0.3ms	0.2ms	0.4ms	192.8	4K
wolfxl	0.5ms	0.5ms	0.5ms	0.5ms	192.8	2K
openpyxl-readonly	0.7ms	0.8ms	0.7ms	0.7ms	192.8	1K
openpyxl	0.8ms	0.9ms	0.8ms	0.8ms	192.8	1K
pylightxl	0.8ms	0.8ms	0.7ms	0.8ms	192.8	1K
tablib	0.9ms	0.9ms	0.8ms	0.9ms	192.8	1K
pyexcel	0.9ms	1.0ms	0.8ms	0.9ms	192.8	1K
pandas	1.2ms	1.4ms	1.0ms	1.2ms	192.8	864

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	192.8	5K
pylightxl	0.2ms	0.2ms	0.2ms	0.2ms	192.8	5K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	192.8	2K
openpyxl	1.1ms	1.3ms	1.1ms	1.1ms	192.8	887
tablib	1.2ms	1.3ms	1.1ms	1.2ms	192.8	840
pyexcel	1.2ms	1.3ms	1.2ms	1.2ms	192.8	826
pandas	1.4ms	1.8ms	1.3ms	1.4ms	192.8	709
xlsxwriter	1.6ms	2.1ms	1.5ms	1.6ms	192.8	632
xlsxwriter-constmem	1.7ms	2.2ms	1.6ms	1.7ms	192.8	593

tables — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	193.8	20K
polars	0.4ms	0.5ms	0.3ms	1.4ms	194.2	3K
wolfxl	0.5ms	0.6ms	0.5ms	0.5ms	193.8	2K
openpyxl-readonly	0.9ms	0.9ms	0.9ms	0.9ms	193.8	1K
tablib	1.4ms	1.4ms	1.4ms	1.4ms	194.2	715
openpyxl	1.4ms	1.9ms	1.4ms	1.4ms	193.8	693
pandas	1.7ms	1.8ms	1.6ms	1.7ms	193.8	594
pyexcel	1.8ms	2.2ms	1.8ms	1.8ms	193.8	552

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	193.8	7K
pylightxl	0.2ms	0.2ms	0.2ms	0.2ms	193.8	5K
wolfxl	0.5ms	0.5ms	0.5ms	0.5ms	193.8	2K
openpyxl	1.1ms	1.3ms	1.1ms	1.1ms	193.8	886
pyexcel	1.1ms	1.2ms	1.1ms	1.1ms	193.8	883
tablib	1.1ms	1.2ms	1.1ms	1.1ms	194.2	877
pandas	1.2ms	1.3ms	1.2ms	1.2ms	193.8	812
xlsxwriter	1.4ms	1.8ms	1.3ms	1.4ms	193.8	691
xlsxwriter-constmem	1.5ms	1.8ms	1.4ms	1.5ms	193.8	686

text_formatting — 13 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	186.1	13K
polars	0.3ms	0.3ms	0.2ms	0.5ms	187.1	4K
wolfxl	0.8ms	0.9ms	0.8ms	0.8ms	186.2	1K
openpyxl-readonly	1.5ms	1.5ms	1.4ms	1.5ms	187.1	686
pylightxl	1.5ms	1.5ms	1.4ms	1.5ms	186.7	670
openpyxl	1.7ms	1.8ms	1.7ms	1.7ms	185.8	582
pyexcel	1.8ms	1.8ms	1.7ms	1.8ms	187.0	562
tablib	1.8ms	1.9ms	1.7ms	1.8ms	187.1	562
pandas	2.0ms	2.1ms	2.0ms	2.0ms	187.0	497

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput
xlwt	0.4ms	0.4ms	0.3ms	0.4ms	187.0	3K
wolfxl	0.7ms	0.7ms	0.6ms	0.7ms	186.7	2K
tablib	1.3ms	1.4ms	1.3ms	1.3ms	187.1	751
pandas	1.6ms	1.8ms	1.5ms	1.6ms	187.0	636
openpyxl	1.7ms	1.8ms	1.6ms	1.7ms	185.8	589
xlsxwriter	2.0ms	2.3ms	1.9ms	2.0ms	186.1	503
xlsxwriter-constmem	2.0ms	2.2ms	1.9ms	1.9ms	187.1	500

Memory Profiling

Each adapter measured in an isolated subprocess. RSS delta = memory allocated during the operation. Tracemalloc = Python heap only (Rust/C allocations are invisible to Python's allocator).

Key finding: Rust-backed adapters allocate <0.1 MB on the Python heap for 100K-cell writes — all memory lives in Rust's allocator with zero GC pressure.

Rust / C-extension Pure Python

Bulk Read — RSS Delta (MB)

100k (99,856 cells)

wolfxl

127.4

+127.4 MB

py: 43.1 MB

openpyxl

114.6

+114.6 MB

py: 43.8 MB

python-calamine

48.9

+48.9 MB

py: 12.3 MB

10k (10,000 cells)

wolfxl

12.9

+12.9 MB

py: 4.3 MB

openpyxl

10.9

+10.9 MB

py: 4.2 MB

python-calamine

4.3

+4.3 MB

py: 1.2 MB

1k (1,000 cells)

wolfxl

1.7

+1.7 MB

py: 0.4 MB

openpyxl

1.4

+1.4 MB

py: 0.6 MB

python-calamine

0.7

+0.7 MB

py: 0.1 MB

Bulk Write — RSS Delta (MB)

100k (99,856 cells)

pandas

38.5

+38.5 MB

py: 31.6 MB

tablib

33.7

+33.7 MB

py: 28.7 MB

openpyxl

32.6

+32.6 MB

py: 28.4 MB

wolfxl

20.9

+20.9 MB

py: <0.1 MB

rust_xlsxwriter

14.4

+14.4 MB

py: <0.1 MB

xlsxwriter

0.0

+0.0 MB

py: 9.9 MB

10k (10,000 cells)

pandas

3.8

+3.8 MB

py: 3.0 MB

rust_xlsxwriter

3.8

+3.8 MB

py: <0.1 MB

tablib

3.7

+3.7 MB

py: 2.7 MB

wolfxl

3.6

+3.6 MB

py: <0.1 MB

openpyxl

3.5

+3.5 MB

py: 2.6 MB

xlsxwriter

1.1

+1.1 MB

py: 1.4 MB

1k (1,000 cells)

wolfxl

1.6

+1.6 MB

py: <0.1 MB

rust_xlsxwriter

1.6

+1.6 MB

py: <0.1 MB

pandas

0.8

+0.8 MB

py: 0.8 MB

tablib

0.5

+0.5 MB

py: 0.7 MB

openpyxl

0.5

+0.5 MB

py: 0.6 MB

xlsxwriter

0.1

+0.1 MB

py: 0.5 MB

Detailed Memory Table

Adapter	Op	Scale	Cells	RSS Delta (MB)	Tracemalloc Peak (MB)	Python Heap %	RSS Total (MB)
wolfxl	read	100k	99,856	+127.41	43.07	34%	266.4
openpyxl	read	100k	99,856	+114.59	43.80	38%	253.1
python-calamine	read	100k	99,856	+48.94	12.32	25%	187.7
pandas	write	100k	99,856	+38.50	31.61	82%	292.9
tablib	write	100k	99,856	+33.66	28.66	85%	288.0
openpyxl	write	100k	99,856	+32.56	28.44	87%	286.6
wolfxl	write	100k	99,856	+20.94	0.01	0%	275.3
rust_xlsxwriter	write	100k	99,856	+14.38	0.01	0%	268.7
xlsxwriter	write	100k	99,856	+0.00	9.87	0%	256.9
wolfxl	read	10k	10,000	+12.95	4.32	33%	151.9
openpyxl	read	10k	10,000	+10.91	4.23	39%	149.4
python-calamine	read	10k	10,000	+4.31	1.24	29%	143.8
pandas	write	10k	10,000	+3.81	3.01	79%	153.6
rust_xlsxwriter	write	10k	10,000	+3.78	0.01	0%	153.6
tablib	write	10k	10,000	+3.70	2.72	74%	153.6
wolfxl	write	10k	10,000	+3.56	0.01	0%	153.7
openpyxl	write	10k	10,000	+3.50	2.58	74%	153.0
xlsxwriter	write	10k	10,000	+1.12	1.43	128%	150.6
wolfxl	read	1k	1,000	+1.70	0.44	26%	140.6
openpyxl	read	1k	1,000	+1.45	0.61	42%	139.9
python-calamine	read	1k	1,000	+0.72	0.13	18%	139.5
wolfxl	write	1k	1,000	+1.58	0.01	1%	141.8
rust_xlsxwriter	write	1k	1,000	+1.56	0.01	1%	141.9
pandas	write	1k	1,000	+0.77	0.78	101%	141.5
tablib	write	1k	1,000	+0.53	0.68	128%	141.2
openpyxl	write	1k	1,000	+0.50	0.62	124%	140.4
xlsxwriter	write	1k	1,000	+0.12	0.45	375%	140.1

Diagnostics

1637 total diagnostics

916

data_mismatch

608

unsupported_feature

invalid_input

internal

By Severity

1029

error

608

warning

All Diagnostics

Category	Severity	Feature	Op	Adapter Message	Probable Cause
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#DIV/0!'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#N/A'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#VALUE!'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'date', 'value': '2026-02-04'}, actual={'type': 'number', 'value': 46057}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'datetime', 'value': '2026-02-04T10:30:45'}, actual={'type': 'number', 'value': 46057.43802083333}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
unsupported_feature	warning	cell_values	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#DIV/0!'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#N/A'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#VALUE!'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#DIV/0!'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#N/A'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'error', 'value': '#VALUE!'}, actual={'type': 'blank'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'boolean', 'value': True}, actual={'type': 'formula', 'value': '=TRUE()'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	read	Expected values did not match actual values: expected={'type': 'boolean', 'value': False}, actual={'type': 'formula', 'value': '=FALSE()'}	Adapter returned a value that differs from benchmark expectations.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got blank	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got error	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got error	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	write	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	write	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	write	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	write	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got blank	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got blank	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got error	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got string	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got number	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got error	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got error	Adapter could not return a comparable value for this assertion.
internal	error	formulas	read	RuntimeError: Expected formula, got error	Adapter could not return a comparable value for this assertion.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={'underline': 'single', 'font_name': 'Aptos Narrow', 'font_size': 12.0, 'font_color': '#000000'}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: aspose-cells-foss does not support write_cell_format: aspose-cells-foss supports only a single underline, not accounting or double variants.	aspose-cells-foss supports only a single underline, not accounting or double variants.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	text_formatting	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={'font_name': 'Arial', 'font_size': 10.0, 'font_color': '#008000'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={'font_name': 'Arial', 'font_size': 10.0, 'font_color': '#993300'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'italic': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'underline': 'single'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'underline': 'double'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'strikethrough': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 8}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 14}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 24}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 36}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'italic': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'underline': 'single'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'underline': 'double'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'strikethrough': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 8}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 14}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 24}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 36}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={'font_name': 'Calibri', 'font_size': 11.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'italic': True}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'single'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'underline': 'single'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'underline': 'double'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'underline': 'double'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'strikethrough': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'strikethrough': True}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True, 'italic': True}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 8}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 8}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 14}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 14}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 24}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 24}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_size': 36}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_size': 36}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Arial'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Times New Roman'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_name': 'Courier New'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#FF0000'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#0000FF'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#00FF00'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'font_color': '#8B4513'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	read	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	text_formatting	write	Expected values did not match actual values: expected={'bold': True, 'font_size': 16, 'font_color': '#FF0000'}, actual={'font_name': 'Calibri', 'font_size': 12.0}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	background_colors	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={'bg_color': '#008000'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={'bg_color': '#993300'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	read	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#00FF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	background_colors	write	Expected values did not match actual values: expected={'bg_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	number_formats	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '$#,##0.00'}, actual={'number_format': '\\$#,##0.00'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={'number_format': 'YYYY-MM-DD'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={'number_format': '"USD "0.00'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'v_align': 'bottom'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'left'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'right'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'top'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'bottom'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'wrap': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'rotation': 45}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'indent': 2}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'bottom'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'v_align': 'bottom'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pylightxl does not support write_cell_format: pylightxl does not implement this feature	pylightxl does not implement this feature
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'left'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'right'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'top'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'bottom'}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'wrap': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'rotation': 45}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'indent': 2}, actual={}	Adapter returned a value that differs from benchmark expectations.
unsupported_feature	warning	alignment	write	UnsupportedAdapterOperationError: pyexcel does not support write_cell_format: pyexcel exposes value-only cells	pyexcel exposes value-only cells
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'left'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'h_align': 'left'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'h_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'h_align': 'right'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'h_align': 'right'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'top'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'v_align': 'top'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	read	Expected values did not match actual values: expected={'v_align': 'center'}, actual={}	Adapter returned a value that differs from benchmark expectations.