ExcelBench Dashboard

Profile: xlsx · Platform: Darwin-arm64 · Excel: 16.105.3 · Date: 2026-02-17

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 — Top-Ranked Across Fidelity & Performance

14/17 features at full fidelity (score 3). Hybrid Rust+Python architecture for maximum compatibility and speed. View on GitHub →

Libraries Tested

Features Scored

51%

Avg Pass Rate

91/238

Score 3 Results

Perf Iterations

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	xlsxwriter W	rust_xlsxwriter W	wolfxl R+W	xlsxwriter-constmem 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	1	1	—
Formulas	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	1	—
Tier 1 — Formatting
Alignment	3	1	1	1	1	3	0	0	0	0	0	0	0	—
Background Colors	3	3	3	3	3	1	0	0	0	0	0	0	0	—
Borders	3	3	3	3	3	1	0	0	0	0	0	0	0	—
Dimensions	3	3	3	3	1	1	0	0	0	0	0	0	0	—
Number Formats	3	3	3	3	3	3	0	0	0	0	0	0	0	—
Text Formatting	3	3	3	3	3	1	0	0	0	0	0	0	0	—
Tier 2 — Advanced
Comments	3	3	3	3	0	0	0	0	0	0	0	0	0	—
Cond. Formatting	3	3	3	3	3	0	0	0	0	0	0	0	0	—
Data Validation	3	3	3	3	3	0	0	0	0	0	0	0	0	—
Freeze Panes	3	3	3	3	3	0	0	0	0	0	0	0	0	—
Hyperlinks	3	3	3	3	3	0	0	0	0	0	0	0	0	—
Images	3	3	0	0	0	0	0	0	0	0	0	0	0	—
Merged Cells	3	3	3	3	3	0	0	0	0	0	0	0	0	—
Pivot Tables	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	16/16	100%	811	—	759
xlsxwriter	W	No	3.2.9	15/16	99%	—	—	565
rust_xlsxwriter	W	No	0.79.4	14/16	97%	—	—	3K
wolfxlRecommended	R+W	Patch	cal=0.1.0+rxw=0.79.4	14/16	97%	5K	—	3K
xlsxwriter-constmem	W	No	3.2.9	12/16	93%	—	—	549
xlwt	W	No	1.3.0	4/16	64%	—	—	4K
openpyxl-readonly	R	No	3.1.5	3/16	23%	213	—	—
pandas	R+W	Rebuild	3.0.0	3/16	20%	628	—	658
pyexcel	R+W	Rebuild	0.7.4	3/16	21%	734	—	751
pylightxl	R+W	Rebuild	1.61	3/16	19%	758	—	3K
tablib	R+W	Rebuild	3.9.0	3/16	21%	564	—	492
python-calamine	R	No	0.6.1	1/16	17%	1K	—	—
polars	R	No	1.38.1	0/16	15%	3K	—	—
xlrd	R	No	2.0.2	0/0	0%	—	—	—

Feature Details

Tier 0 — Core

Cell ValuesTier 014 libraries · 96% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
pylightxl	3	1	89%	Known limitation: pylightxl cell-values write has date/boolean/error fidelity limits due to writer encoding behavior.
pyexcel	3	3	100%	—
xlwt	—	3	100%	—
pandas	1	3	92%	—
xlsxwriter-constmem	—	3	100%	—
openpyxl-readonly	3	—	100%	—
tablib	3	3	100%	—
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`

rust_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`

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`	`42.0`
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`	`1234567890123456.0`
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 — 32/36 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`	`1`
Boolean - FALSE	read	basic	✓	`False`	`False`
Boolean - FALSE	write	basic	✗	`False`	`0`
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`

pyexcel — 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`

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`

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 014 libraries · 63% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	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%	—
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`

rust_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`

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`

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 014 libraries · 97% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
python-calamine	3	—	100%	—
rust_xlsxwriter	—	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%	—
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`

rust_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`

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`

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 114 libraries · 39% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlwt	—	3	100%	—
xlsxwriter	—	1	89%	—
rust_xlsxwriter	—	1	89%	—
wolfxl	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%	—
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`

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`

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`

rust_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`

wolfxl — 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`	`h_align=left, 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`
Align - center	read	basic	✗	`h_align=center`	`error=expected string or bytes-like object, got 'NoneType'`
Align - center	write	basic	✗	`h_align=center`
Align - right	read	basic	✗	`h_align=right`	`error=expected string or bytes-like object, got 'NoneType'`
Align - right	write	basic	✗	`h_align=right`
Align - top	read	basic	✗	`v_align=top`	`error=expected string or bytes-like object, got 'NoneType'`
Align - top	write	basic	✗	`v_align=top`
Align - center	read	basic	✗	`v_align=center`	`error=expected string or bytes-like object, got 'NoneType'`
Align - center	write	basic	✗	`v_align=center`
Align - bottom	read	basic	✗	`v_align=bottom`	`error=expected string or bytes-like object, got 'NoneType'`
Align - bottom	write	basic	✗	`v_align=bottom`
Align - wrap text	read	basic	✗	`wrap=True`	`error=expected string or bytes-like object, got 'NoneType'`
Align - wrap text	write	basic	✗	`wrap=True`
Align - rotation 45	read	basic	✗	`rotation=45`	`error=expected string or bytes-like object, got 'NoneType'`
Align - rotation 45	write	basic	✗	`rotation=45`
Align - indent 2	read	basic	✗	`indent=2`	`error=expected string or bytes-like object, got 'NoneType'`
Align - indent 2	write	basic	✗	`indent=2`

pyexcel — 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`

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`

Background ColorsTier 114 libraries · 39% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	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`

rust_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`

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`

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
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`

pyexcel — 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`

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 114 libraries · 41% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
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%	—
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`

rust_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`

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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`

pyexcel — 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`

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`

DimensionsTier 114 libraries · 37% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
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`

rust_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`

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`

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`
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`

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`
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`

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 114 libraries · 42% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlwt	—	3	100%	—
xlsxwriter-constmem	—	3	100%	—
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`

rust_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`

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`

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`	`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`

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`	`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`

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 114 libraries · 42% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	3	100%	—
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%	—
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`

rust_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, font_name=Calibri, font_size=11.0`
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, font_name=Calibri, font_size=11.0`
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, font_name=Calibri, font_size=11.0`
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, font_name=Calibri, font_size=11.0`
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, font_name=Calibri, font_size=11.0`
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_name=Calibri, font_size=11.0`
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_name=Calibri, 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_name=Calibri, 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_name=Calibri, 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_name=Calibri, 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_size=11.0`
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_size=11.0`
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_size=11.0`
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_name=Calibri, font_size=11.0, 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_name=Calibri, font_size=11.0, 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_name=Calibri, font_size=11.0, 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_name=Calibri, font_size=11.0, 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=16.0, font_color=#FF0000`
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`

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`

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`	`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`

pyexcel — 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`

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`

Tier 2 — Advanced

CommentsTier 214 libraries · 32% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	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}`

rust_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}`

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}`

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
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}`

pyexcel — 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}`

xlwt — 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}`

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 214 libraries · 37% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	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 — 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'}}`

rust_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'}}`

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'}}`

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'}}`
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'}}`
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'}}`
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}`
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}`
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'}}`

pyexcel — 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'}}`

xlwt — 0/6 test cases passed

Test	Op	Imp.	Result	Expected
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	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'expression', 'formula': '=Ref!$A$1>5', 'priority': 2, '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: data bar	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'dataBar', 'priority': 4}`
CF: 3-color scale	write	edge	✗	`cf_rule={'range': 'B2:B6', 'rule_type': 'colorScale', 'priority': 5}`
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'}}`

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'}}`

Data ValidationTier 214 libraries · 37% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	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 — 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'}`

rust_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'}`

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'}`

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}`
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'}`
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'}`
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'}`
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'}`

pyexcel — 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'}`

xlwt — 0/5 test cases passed

Test	Op	Imp.	Result	Expected
DV: list from CSV	write	basic	✗	`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'}`
DV: cross-sheet named range	write	edge	✗	`validation={'range': 'B4', 'validation_type': 'list', 'formula1': '=RegionList'}`
DV: custom formula	write	edge	✗	`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'}`

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'}`

Freeze PanesTier 214 libraries · 37% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	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 — 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}`

rust_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}`

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}`

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'}`	`freeze={'mode': None, 'top_left_cell': None}`
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'}`	`freeze={'mode': None, 'top_left_cell': None}`
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}`	`freeze={'mode': None, 'x_split': None, 'y_split': None}`

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'}`	`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}`

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}`

HyperlinksTier 214 libraries · 37% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	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
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}`

rust_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}`

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}`

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}`
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}`
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}`
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}`

pyexcel — 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}`

xlwt — 0/4 test cases passed

Test	Op	Imp.	Result	Expected
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	write	edge	✗	`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: 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}`

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}`

ImagesTier 214 libraries · 16% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
python-calamine	0	—	0%	—
rust_xlsxwriter	—	0	0%	—
wolfxl	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%	—
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': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: one-cell anchor	write	basic	✓	`image={'cell': 'B2', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✓	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.jpg', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✓	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/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': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`	`image={'cell': 'B2', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	write	edge	✓	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.jpg', 'anchor': 'oneCell'}`	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/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': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.png', 'anchor': 'oneCell'}`
Image: two-cell anchor with offset	read	edge	✗	`image={'cell': 'D6', 'path': '/Users/wolfgangschoenberger/Projects/ExcelBench/fixtures/images/sample.jpg', 'anchor': 'oneCell'}`

rust_xlsxwriter — 0/2 test cases passed

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

wolfxl — 0/4 test cases passed

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

pylightxl — 0/4 test cases passed

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

pyexcel — 0/4 test cases passed

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

xlwt — 0/2 test cases passed

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

pandas — 0/4 test cases passed

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

Merged CellsTier 214 libraries · 37% pass rate

Library	Read	Write	Pass Rate	Notes
openpyxl	3	3	100%	—
xlsxwriter	—	3	100%	—
rust_xlsxwriter	—	3	100%	—
wolfxl	3	3	100%	—
xlsxwriter-constmem	—	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`

rust_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`

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`

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
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`

pyexcel — 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`

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 214 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).
rust_xlsxwriter	—	—	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).

Performance Benchmarks

Warmup: 3 · Iterations: 25 · Iteration Policy: fixed · Breakdown: Yes · Platform: Darwin-arm64 · Python: 3.12.3

alignment — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	165.3	19K	opensheeexerclos
wolfxl	0.1ms	0.1ms	0.1ms	0.1ms	165.3	12K	opensheeexerclos
polars	0.3ms	0.3ms	0.2ms	1.0ms	165.4	4K	opensheeexerclos
openpyxl-readonly	0.9ms	1.0ms	0.9ms	0.9ms	165.4	1K	opensheeexerclos
tablib	1.2ms	1.3ms	1.1ms	1.2ms	165.5	852	opensheeexerclos
openpyxl	1.2ms	1.2ms	1.1ms	1.2ms	165.3	837	opensheeexerclos
pyexcel	1.2ms	1.5ms	1.1ms	1.2ms	165.4	808	opensheeexerclos
pandas	1.3ms	1.4ms	1.3ms	1.3ms	165.4	748	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.3ms	0.2ms	0.2ms	165.4	4K	creaadd_exersave
pylightxl	0.3ms	0.4ms	0.3ms	0.3ms	165.4	3K	creaadd_exersave
wolfxl	0.3ms	0.4ms	0.3ms	0.3ms	165.3	3K	creaadd_exersave
rust_xlsxwriter	0.4ms	0.4ms	0.3ms	0.4ms	165.3	3K	creaadd_exersave
tablib	1.3ms	1.3ms	1.2ms	1.3ms	165.5	798	creaadd_exersave
pyexcel	1.3ms	1.4ms	1.2ms	1.3ms	165.4	796	creaadd_exersave
pandas	1.4ms	1.6ms	1.3ms	1.4ms	165.4	700	creaadd_exersave
openpyxl	1.4ms	1.8ms	1.4ms	1.4ms	165.3	691	creaadd_exersave
xlsxwriter-constmem	1.8ms	2.1ms	1.7ms	1.8ms	165.4	569	creaadd_exersave
xlsxwriter	1.8ms	2.1ms	1.7ms	1.8ms	165.3	556	creaadd_exersave

background_colors — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	164.1	18K	opensheeexerclos
wolfxl	0.1ms	0.1ms	0.1ms	0.1ms	164.2	13K	opensheeexerclos
polars	0.2ms	0.3ms	0.2ms	0.5ms	164.5	4K	opensheeexerclos
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	164.5	1K	opensheeexerclos
pylightxl	1.0ms	1.0ms	0.8ms	1.0ms	164.2	1K	opensheeexerclos
tablib	1.0ms	1.0ms	0.9ms	1.0ms	164.5	1K	opensheeexerclos
openpyxl	1.0ms	1.2ms	0.9ms	1.0ms	164.1	988	opensheeexerclos
pyexcel	1.0ms	1.1ms	1.0ms	1.0ms	164.4	953	opensheeexerclos
pandas	1.2ms	1.3ms	1.1ms	1.2ms	164.5	835	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	164.5	5K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	164.2	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.3ms	164.2	3K	creaadd_exersave
pylightxl	0.3ms	0.4ms	0.3ms	0.3ms	164.2	3K	creaadd_exersave
pyexcel	1.2ms	1.2ms	1.1ms	1.2ms	164.5	839	creaadd_exersave
tablib	1.2ms	1.3ms	1.2ms	1.2ms	164.6	830	creaadd_exersave
openpyxl	1.3ms	1.4ms	1.3ms	1.3ms	164.1	753	creaadd_exersave
pandas	1.4ms	1.5ms	1.3ms	1.4ms	164.5	731	creaadd_exersave
xlsxwriter-constmem	1.7ms	2.1ms	1.6ms	1.7ms	164.5	591	creaadd_exersave
xlsxwriter	1.9ms	2.3ms	1.6ms	1.9ms	164.1	517	creaadd_exersave

borders — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	165.5	14K	opensheeexerclos
polars	0.2ms	0.3ms	0.2ms	0.4ms	165.9	4K	opensheeexerclos
wolfxl	0.4ms	0.4ms	0.3ms	0.4ms	165.8	3K	opensheeexerclos
openpyxl-readonly	1.3ms	1.6ms	1.2ms	1.3ms	165.9	789	opensheeexerclos
tablib	1.7ms	2.3ms	1.6ms	1.7ms	166.0	596	opensheeexerclos
openpyxl	1.7ms	2.2ms	1.6ms	1.7ms	165.5	588	opensheeexerclos
pyexcel	1.9ms	2.1ms	1.7ms	1.9ms	165.9	529	opensheeexerclos
pandas	2.1ms	2.3ms	1.7ms	2.1ms	165.9	478	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.5ms	0.6ms	0.4ms	0.5ms	165.9	2K	creaadd_exersave
wolfxl	0.5ms	0.6ms	0.4ms	0.5ms	165.8	2K	creaadd_exersave
rust_xlsxwriter	0.5ms	0.6ms	0.4ms	0.5ms	165.8	2K	creaadd_exersave
pylightxl	0.5ms	0.6ms	0.4ms	0.5ms	165.8	2K	creaadd_exersave
tablib	1.4ms	1.5ms	1.3ms	1.4ms	166.0	712	creaadd_exersave
pyexcel	1.5ms	1.9ms	1.4ms	1.5ms	165.9	679	creaadd_exersave
pandas	1.8ms	2.1ms	1.6ms	1.8ms	165.9	569	creaadd_exersave
xlsxwriter	2.6ms	3.3ms	2.4ms	2.6ms	165.5	382	creaadd_exersave
openpyxl	2.6ms	3.8ms	2.2ms	2.6ms	165.5	381	creaadd_exersave
xlsxwriter-constmem	2.7ms	3.3ms	2.1ms	2.7ms	165.9	367	creaadd_exersave

cell_values — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	145.7	5K	opensheeexerclos
polars	0.3ms	0.4ms	0.3ms	1.3ms	160.1	3K	opensheeexerclos
python-calamine	0.9ms	1.0ms	0.8ms	0.9ms	144.0	1K	opensheeexerclos
openpyxl	1.2ms	1.3ms	1.1ms	1.2ms	143.1	811	opensheeexerclos
pylightxl	1.3ms	1.5ms	1.3ms	1.3ms	146.0	758	opensheeexerclos
pyexcel	1.4ms	1.6ms	1.3ms	1.4ms	146.2	734	opensheeexerclos
pandas	1.6ms	1.7ms	1.6ms	1.6ms	146.8	628	opensheeexerclos
tablib	1.8ms	2.2ms	1.3ms	1.7ms	160.8	564	opensheeexerclos
openpyxl-readonly	4.7ms	4.8ms	4.6ms	4.7ms	148.1	213	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.3ms	0.2ms	0.2ms	146.4	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.4ms	145.7	3K	creaadd_exersave
wolfxl	0.4ms	0.4ms	0.3ms	0.4ms	145.8	3K	creaadd_exersave
pylightxl	0.4ms	0.4ms	0.3ms	0.4ms	146.0	3K	creaadd_exersave
openpyxl	1.3ms	1.4ms	1.3ms	1.3ms	143.5	759	creaadd_exersave
pyexcel	1.3ms	1.4ms	1.3ms	1.3ms	146.3	751	creaadd_exersave
pandas	1.5ms	1.6ms	1.5ms	1.5ms	146.9	658	creaadd_exersave
xlsxwriter	1.8ms	2.1ms	1.7ms	1.8ms	143.6	565	creaadd_exersave
xlsxwriter-constmem	1.8ms	2.5ms	1.7ms	1.8ms	147.0	549	creaadd_exersave
tablib	2.0ms	3.0ms	1.5ms	1.9ms	161.0	492	creaadd_exersave

comments — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	169.3	16K	opensheeexerclos
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	169.3	5K	opensheeexerclos
polars	0.2ms	0.3ms	0.2ms	0.6ms	169.3	4K	opensheeexerclos
openpyxl-readonly	0.8ms	0.9ms	0.8ms	0.8ms	169.3	1K	opensheeexerclos
tablib	1.0ms	1.0ms	0.9ms	0.9ms	169.3	1K	opensheeexerclos
openpyxl	1.1ms	1.2ms	1.0ms	1.1ms	169.3	907	opensheeexerclos
pylightxl	1.1ms	1.2ms	1.1ms	1.1ms	169.3	879	opensheeexerclos
pandas	1.2ms	1.3ms	1.1ms	1.2ms	169.3	856	opensheeexerclos
pyexcel	1.2ms	1.2ms	1.1ms	1.2ms	169.3	850	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	169.3	8K	creaadd_exersave
pylightxl	0.2ms	0.5ms	0.2ms	0.2ms	169.3	4K	creaadd_exersave
wolfxl	0.4ms	0.4ms	0.3ms	0.4ms	169.3	3K	creaadd_exersave
rust_xlsxwriter	0.4ms	0.5ms	0.4ms	0.4ms	169.3	2K	creaadd_exersave
tablib	1.2ms	1.2ms	1.1ms	1.1ms	169.3	870	creaadd_exersave
pyexcel	1.2ms	1.2ms	1.1ms	1.2ms	169.3	857	creaadd_exersave
pandas	1.2ms	1.3ms	1.2ms	1.2ms	169.3	808	creaadd_exersave
openpyxl	1.4ms	1.5ms	1.4ms	1.4ms	169.3	702	creaadd_exersave
xlsxwriter-constmem	1.8ms	2.4ms	1.5ms	1.7ms	169.3	561	creaadd_exersave
xlsxwriter	2.0ms	2.4ms	1.9ms	2.0ms	169.3	495	creaadd_exersave

conditional_formatting — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	167.7	19K	opensheeexerclos
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	167.7	5K	opensheeexerclos
polars	0.4ms	0.4ms	0.3ms	1.8ms	167.7	3K	opensheeexerclos
openpyxl-readonly	0.9ms	1.1ms	0.9ms	0.9ms	167.7	1K	opensheeexerclos
tablib	1.3ms	1.4ms	1.3ms	1.3ms	167.7	757	opensheeexerclos
openpyxl	1.4ms	1.8ms	1.3ms	1.4ms	167.7	728	opensheeexerclos
pyexcel	1.4ms	1.5ms	1.4ms	1.4ms	167.7	707	opensheeexerclos
pandas	1.6ms	1.7ms	1.6ms	1.6ms	167.7	625	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.2ms	0.1ms	0.1ms	167.7	7K	creaadd_exersave
pylightxl	0.2ms	0.3ms	0.2ms	0.2ms	167.7	4K	creaadd_exersave
wolfxl	0.3ms	0.4ms	0.3ms	0.4ms	167.7	3K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.4ms	167.7	3K	creaadd_exersave
tablib	1.4ms	1.9ms	1.3ms	1.4ms	167.7	695	creaadd_exersave
pyexcel	1.5ms	1.6ms	1.4ms	1.5ms	167.7	685	creaadd_exersave
pandas	1.5ms	1.6ms	1.4ms	1.5ms	167.7	660	creaadd_exersave
openpyxl	1.7ms	2.2ms	1.7ms	1.7ms	167.7	575	creaadd_exersave
xlsxwriter	1.8ms	2.1ms	1.7ms	1.8ms	167.7	571	creaadd_exersave
xlsxwriter-constmem	1.9ms	2.3ms	1.8ms	1.9ms	167.7	534	creaadd_exersave

data_validation — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	167.7	19K	opensheeexerclos
wolfxl	0.1ms	0.2ms	0.1ms	0.1ms	167.7	7K	opensheeexerclos
polars	0.4ms	0.6ms	0.4ms	2.6ms	168.0	2K	opensheeexerclos
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	167.7	1K	opensheeexerclos
tablib	1.2ms	1.3ms	1.1ms	1.2ms	168.0	825	opensheeexerclos
openpyxl	1.2ms	1.3ms	1.2ms	1.2ms	167.7	807	opensheeexerclos
pyexcel	1.3ms	1.8ms	1.3ms	1.3ms	167.7	770	opensheeexerclos
pandas	1.6ms	1.7ms	1.5ms	1.6ms	167.7	636	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	167.7	8K	creaadd_exersave
pylightxl	0.2ms	0.3ms	0.2ms	0.2ms	167.7	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.3ms	0.2ms	0.3ms	167.7	4K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	167.7	4K	creaadd_exersave
tablib	1.2ms	1.2ms	1.1ms	1.2ms	168.0	868	creaadd_exersave
pyexcel	1.2ms	1.2ms	1.1ms	1.2ms	167.7	852	creaadd_exersave
pandas	1.2ms	1.3ms	1.2ms	1.2ms	167.7	802	creaadd_exersave
openpyxl	1.3ms	1.6ms	1.2ms	1.3ms	167.7	771	creaadd_exersave
xlsxwriter	1.6ms	1.8ms	1.4ms	1.5ms	167.7	643	creaadd_exersave
xlsxwriter-constmem	1.6ms	1.9ms	1.5ms	1.6ms	167.7	632	creaadd_exersave

dimensions — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	166.0	16K	opensheeexerclos
wolfxl	0.1ms	0.1ms	0.1ms	0.1ms	166.0	14K	opensheeexerclos
polars	0.3ms	0.4ms	0.2ms	1.8ms	166.6	3K	opensheeexerclos
openpyxl-readonly	0.8ms	0.8ms	0.7ms	0.8ms	166.3	1K	opensheeexerclos
pylightxl	0.9ms	0.9ms	0.8ms	0.9ms	166.0	1K	opensheeexerclos
openpyxl	0.9ms	1.0ms	0.9ms	0.9ms	166.0	1K	opensheeexerclos
tablib	1.0ms	1.0ms	0.9ms	0.9ms	166.6	1K	opensheeexerclos
pyexcel	1.0ms	1.1ms	1.0ms	1.0ms	166.0	987	opensheeexerclos
pandas	1.2ms	1.2ms	1.1ms	1.2ms	166.3	868	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	166.0	8K	creaadd_exersave
pylightxl	0.2ms	0.2ms	0.2ms	0.2ms	166.0	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.3ms	0.3ms	0.3ms	166.0	4K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	166.0	4K	creaadd_exersave
tablib	1.2ms	1.2ms	1.1ms	1.2ms	166.6	857	creaadd_exersave
pyexcel	1.2ms	1.4ms	1.1ms	1.2ms	166.0	839	creaadd_exersave
openpyxl	1.2ms	1.3ms	1.2ms	1.2ms	166.0	822	creaadd_exersave
pandas	1.2ms	1.3ms	1.2ms	1.2ms	166.3	815	creaadd_exersave
xlsxwriter	1.5ms	1.9ms	1.4ms	1.5ms	166.0	657	creaadd_exersave
xlsxwriter-constmem	1.7ms	2.2ms	1.5ms	1.7ms	166.3	586	creaadd_exersave

formulas — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.2ms	0.2ms	0.1ms	0.2ms	161.3	6K	opensheeexerclos
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	161.4	6K	opensheeexerclos
polars	0.4ms	0.5ms	0.3ms	1.2ms	162.5	3K	opensheeexerclos
tablib	1.1ms	1.2ms	1.1ms	1.1ms	162.6	885	opensheeexerclos
pylightxl	1.1ms	1.2ms	1.1ms	1.1ms	161.4	871	opensheeexerclos
openpyxl	1.2ms	1.3ms	1.0ms	1.2ms	161.2	861	opensheeexerclos
pyexcel	1.2ms	1.3ms	1.2ms	1.2ms	161.4	820	opensheeexerclos
openpyxl-readonly	1.4ms	1.6ms	1.3ms	1.4ms	162.2	729	opensheeexerclos
pandas	1.5ms	1.7ms	1.4ms	1.5ms	161.5	679	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.3ms	0.3ms	0.2ms	0.3ms	161.5	4K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.3ms	0.3ms	161.4	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.4ms	161.4	3K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.4ms	161.4	3K	creaadd_exersave
openpyxl	1.5ms	1.5ms	1.4ms	1.5ms	161.2	682	creaadd_exersave
tablib	1.5ms	1.6ms	1.4ms	1.5ms	162.8	668	creaadd_exersave
pyexcel	1.6ms	2.0ms	1.5ms	1.5ms	161.4	627	creaadd_exersave
pandas	1.8ms	2.5ms	1.6ms	1.7ms	161.9	561	creaadd_exersave
xlsxwriter	1.8ms	2.1ms	1.6ms	1.8ms	161.3	548	creaadd_exersave
xlsxwriter-constmem	2.2ms	3.6ms	1.8ms	2.1ms	162.0	455	creaadd_exersave

freeze_panes — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.0ms	0.1ms	0.0ms	0.1ms	169.3	20K	opensheeexerclos
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	169.3	5K	opensheeexerclos
polars	0.5ms	0.6ms	0.4ms	1.9ms	169.3	2K	opensheeexerclos
openpyxl-readonly	1.0ms	1.0ms	0.9ms	1.0ms	169.3	1K	opensheeexerclos
tablib	1.3ms	1.4ms	1.3ms	1.3ms	169.3	766	opensheeexerclos
openpyxl	1.3ms	1.8ms	1.3ms	1.3ms	169.3	750	opensheeexerclos
pyexcel	1.4ms	1.9ms	1.4ms	1.4ms	169.3	691	opensheeexerclos
pandas	1.7ms	1.9ms	1.6ms	1.7ms	169.3	597	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	169.3	6K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.3ms	0.3ms	169.3	3K	creaadd_exersave
wolfxl	1.0ms	1.0ms	0.9ms	1.0ms	169.3	1K	creaadd_exersave
rust_xlsxwriter	1.0ms	1.0ms	0.9ms	1.0ms	169.3	1K	creaadd_exersave
openpyxl	2.0ms	2.1ms	1.9ms	2.0ms	169.3	505	creaadd_exersave
xlsxwriter	2.0ms	2.5ms	1.9ms	2.0ms	169.3	496	creaadd_exersave
pyexcel	2.0ms	2.5ms	1.9ms	2.0ms	169.3	492	creaadd_exersave
tablib	2.0ms	2.6ms	1.9ms	2.0ms	169.5	491	creaadd_exersave
pandas	2.1ms	2.2ms	2.0ms	2.1ms	169.3	479	creaadd_exersave
xlsxwriter-constmem	2.4ms	2.9ms	2.1ms	2.4ms	169.3	415	creaadd_exersave

hyperlinks — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	168.0	20K	opensheeexerclos
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	168.0	5K	opensheeexerclos
polars	0.4ms	0.5ms	0.3ms	1.6ms	168.2	3K	opensheeexerclos
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	168.0	1K	opensheeexerclos
tablib	1.2ms	1.3ms	1.1ms	1.2ms	168.2	862	opensheeexerclos
openpyxl	1.2ms	1.2ms	1.1ms	1.2ms	168.0	859	opensheeexerclos
pyexcel	1.3ms	1.3ms	1.2ms	1.3ms	168.0	789	opensheeexerclos
pandas	1.5ms	1.5ms	1.4ms	1.5ms	168.0	688	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	168.0	8K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.2ms	0.3ms	168.0	4K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	168.0	3K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.3ms	168.0	3K	creaadd_exersave
tablib	1.2ms	1.2ms	1.1ms	1.2ms	168.2	851	creaadd_exersave
pyexcel	1.2ms	1.3ms	1.1ms	1.2ms	168.0	843	creaadd_exersave
pandas	1.2ms	1.3ms	1.2ms	1.2ms	168.0	825	creaadd_exersave
openpyxl	1.3ms	1.5ms	1.2ms	1.3ms	168.0	779	creaadd_exersave
xlsxwriter-constmem	1.8ms	2.3ms	1.7ms	1.8ms	168.0	570	creaadd_exersave
xlsxwriter	1.8ms	2.4ms	1.7ms	1.8ms	168.0	559	creaadd_exersave

images — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	169.3	19K	opensheeexerclos
wolfxl	0.1ms	0.1ms	0.1ms	0.1ms	169.3	17K	opensheeexerclos
polars	0.2ms	0.3ms	0.2ms	0.5ms	169.3	4K	opensheeexerclos
openpyxl-readonly	0.8ms	0.9ms	0.7ms	0.8ms	169.3	1K	opensheeexerclos
tablib	0.9ms	1.1ms	0.8ms	0.9ms	169.3	1K	opensheeexerclos
pandas	1.1ms	1.3ms	1.0ms	1.1ms	169.3	900	opensheeexerclos
openpyxl	1.2ms	1.2ms	1.1ms	1.2ms	169.3	865	opensheeexerclos
pyexcel	1.2ms	1.3ms	1.1ms	1.2ms	169.3	827	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	169.3	8K	creaadd_exersave
pylightxl	0.2ms	0.2ms	0.2ms	0.2ms	169.3	4K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	169.3	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.3ms	169.3	3K	creaadd_exersave
tablib	1.1ms	1.2ms	1.1ms	1.1ms	169.3	871	creaadd_exersave
pyexcel	1.2ms	1.2ms	1.1ms	1.2ms	169.3	844	creaadd_exersave
pandas	1.2ms	1.3ms	1.2ms	1.2ms	169.3	810	creaadd_exersave
xlsxwriter-constmem	1.5ms	1.9ms	1.5ms	1.5ms	169.3	665	creaadd_exersave
openpyxl	1.7ms	1.9ms	1.6ms	1.7ms	169.3	593	creaadd_exersave
xlsxwriter	2.5ms	2.8ms	2.3ms	2.5ms	169.3	405	creaadd_exersave

merged_cells — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	167.1	17K	opensheeexerclos
wolfxl	0.2ms	0.2ms	0.2ms	0.2ms	167.2	5K	opensheeexerclos
polars	0.2ms	0.3ms	0.2ms	0.6ms	167.2	4K	opensheeexerclos
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	167.2	1K	opensheeexerclos
pylightxl	1.0ms	1.0ms	0.9ms	1.0ms	167.2	1K	opensheeexerclos
tablib	1.0ms	1.2ms	0.9ms	1.0ms	167.2	992	opensheeexerclos
pandas	1.2ms	1.3ms	1.1ms	1.2ms	167.2	831	opensheeexerclos
openpyxl	1.2ms	1.2ms	1.1ms	1.2ms	167.1	815	opensheeexerclos
pyexcel	1.3ms	1.3ms	1.2ms	1.3ms	167.2	776	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	167.2	5K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	167.2	4K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.3ms	0.3ms	167.2	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.3ms	0.3ms	0.3ms	167.2	3K	creaadd_exersave
tablib	1.2ms	1.3ms	1.2ms	1.2ms	167.3	821	creaadd_exersave
pyexcel	1.2ms	1.3ms	1.2ms	1.2ms	167.2	819	creaadd_exersave
pandas	1.4ms	1.5ms	1.3ms	1.4ms	167.2	705	creaadd_exersave
openpyxl	1.4ms	1.5ms	1.4ms	1.4ms	167.1	704	creaadd_exersave
xlsxwriter-constmem	1.7ms	2.1ms	1.6ms	1.7ms	167.2	604	creaadd_exersave
xlsxwriter	1.7ms	2.0ms	1.6ms	1.7ms	167.1	596	creaadd_exersave

multiple_sheets — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
wolfxl	0.1ms	0.1ms	0.1ms	0.1ms	166.8	18K	opensheeexerclos
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	166.7	16K	opensheeexerclos
polars	0.5ms	0.6ms	0.4ms	2.1ms	167.0	2K	opensheeexerclos
openpyxl-readonly	1.0ms	1.0ms	0.9ms	1.0ms	166.8	1K	opensheeexerclos
openpyxl	1.3ms	1.3ms	1.2ms	1.3ms	166.6	798	opensheeexerclos
tablib	1.3ms	1.4ms	1.2ms	1.3ms	167.0	794	opensheeexerclos
pylightxl	1.3ms	1.3ms	1.3ms	1.3ms	166.8	766	opensheeexerclos
pyexcel	1.4ms	1.5ms	1.3ms	1.4ms	166.8	737	opensheeexerclos
pandas	1.7ms	1.8ms	1.6ms	1.7ms	166.8	596	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.2ms	0.2ms	0.2ms	166.8	6K	creaadd_exersave
pylightxl	0.3ms	0.4ms	0.3ms	0.3ms	166.8	3K	creaadd_exersave
wolfxl	0.4ms	0.4ms	0.3ms	0.4ms	166.8	3K	creaadd_exersave
rust_xlsxwriter	0.4ms	0.4ms	0.4ms	0.4ms	166.8	3K	creaadd_exersave
tablib	1.8ms	2.1ms	1.7ms	1.8ms	167.1	548	creaadd_exersave
openpyxl	1.8ms	2.2ms	1.7ms	1.8ms	166.6	542	creaadd_exersave
pyexcel	1.9ms	2.2ms	1.7ms	1.8ms	166.8	535	creaadd_exersave
xlsxwriter	2.1ms	2.6ms	1.9ms	2.0ms	166.7	465	creaadd_exersave
pandas	2.2ms	2.5ms	2.1ms	2.1ms	166.8	462	creaadd_exersave
xlsxwriter-constmem	2.7ms	4.1ms	2.0ms	2.3ms	166.8	367	creaadd_exersave

named_ranges — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
wolfxl	0.0ms	0.0ms	0.0ms	0.0ms	169.6	22K	opensheeexerclos
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	169.5	19K	opensheeexerclos
polars	0.4ms	0.6ms	0.3ms	2.1ms	169.6	2K	opensheeexerclos
openpyxl-readonly	0.8ms	0.9ms	0.8ms	0.8ms	169.6	1K	opensheeexerclos
openpyxl	1.1ms	1.3ms	1.0ms	1.1ms	169.5	937	opensheeexerclos
tablib	1.1ms	1.1ms	1.0ms	1.1ms	169.6	916	opensheeexerclos
pyexcel	1.2ms	1.2ms	1.2ms	1.2ms	169.6	844	opensheeexerclos
pandas	1.4ms	1.4ms	1.3ms	1.4ms	169.6	730	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.2ms	0.1ms	0.1ms	169.6	7K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.2ms	0.2ms	169.6	4K	creaadd_exersave
wolfxl	0.3ms	0.5ms	0.3ms	0.3ms	169.6	3K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.4ms	0.3ms	0.3ms	169.6	3K	creaadd_exersave
openpyxl	1.4ms	1.5ms	1.4ms	1.4ms	169.5	706	creaadd_exersave
tablib	1.4ms	1.5ms	1.4ms	1.4ms	169.6	703	creaadd_exersave
pyexcel	1.4ms	1.5ms	1.4ms	1.4ms	169.6	694	creaadd_exersave
pandas	1.5ms	1.6ms	1.5ms	1.5ms	169.6	655	creaadd_exersave
xlsxwriter	1.7ms	2.0ms	1.6ms	1.7ms	169.5	599	creaadd_exersave
xlsxwriter-constmem	1.8ms	2.2ms	1.6ms	1.8ms	169.6	544	creaadd_exersave

number_formats — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	164.7	18K	opensheeexerclos
wolfxl	0.1ms	0.1ms	0.1ms	0.1ms	164.7	12K	opensheeexerclos
polars	0.2ms	0.4ms	0.2ms	0.7ms	164.9	4K	opensheeexerclos
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	164.8	1K	opensheeexerclos
pylightxl	1.0ms	1.0ms	0.9ms	1.0ms	164.7	1K	opensheeexerclos
tablib	1.0ms	1.0ms	0.9ms	1.0ms	165.0	994	opensheeexerclos
openpyxl	1.0ms	1.1ms	1.0ms	1.0ms	164.6	971	opensheeexerclos
pyexcel	1.1ms	1.2ms	1.0ms	1.1ms	164.7	910	opensheeexerclos
pandas	1.2ms	1.2ms	1.1ms	1.2ms	164.8	843	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.2ms	0.3ms	0.2ms	0.2ms	164.7	5K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	164.7	4K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.3ms	0.3ms	164.7	3K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.3ms	0.3ms	0.3ms	164.7	3K	creaadd_exersave
tablib	1.2ms	1.3ms	1.1ms	1.2ms	165.0	809	creaadd_exersave
pyexcel	1.2ms	1.3ms	1.2ms	1.2ms	164.7	806	creaadd_exersave
openpyxl	1.3ms	1.4ms	1.2ms	1.3ms	164.7	770	creaadd_exersave
pandas	1.4ms	1.7ms	1.4ms	1.4ms	164.8	706	creaadd_exersave
xlsxwriter	1.6ms	2.2ms	1.5ms	1.6ms	164.7	622	creaadd_exersave
xlsxwriter-constmem	1.7ms	2.1ms	1.6ms	1.7ms	164.8	582	creaadd_exersave

pivot_tables — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
wolfxl	0.0ms	0.1ms	0.0ms	0.0ms	169.3	20K	opensheeexerclos
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	169.3	20K	opensheeexerclos
polars	0.2ms	0.3ms	0.2ms	1.1ms	169.3	4K	opensheeexerclos
openpyxl-readonly	0.7ms	0.8ms	0.7ms	0.7ms	169.3	1K	opensheeexerclos
pylightxl	0.8ms	0.9ms	0.7ms	0.8ms	169.3	1K	opensheeexerclos
openpyxl	0.9ms	0.9ms	0.8ms	0.9ms	169.3	1K	opensheeexerclos
tablib	0.9ms	0.9ms	0.8ms	0.9ms	169.3	1K	opensheeexerclos
pyexcel	0.9ms	0.9ms	0.8ms	0.9ms	169.3	1K	opensheeexerclos
pandas	1.0ms	1.1ms	0.9ms	1.0ms	169.3	972	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	169.3	8K	creaadd_exersave
wolfxl	0.2ms	0.3ms	0.2ms	0.2ms	169.3	4K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.3ms	0.2ms	0.3ms	169.3	4K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.2ms	0.3ms	169.3	4K	creaadd_exersave
pyexcel	1.2ms	1.3ms	1.1ms	1.2ms	169.3	856	creaadd_exersave
openpyxl	1.2ms	1.9ms	1.1ms	1.2ms	169.3	846	creaadd_exersave
tablib	1.2ms	1.5ms	1.1ms	1.2ms	169.3	843	creaadd_exersave
pandas	1.2ms	1.3ms	1.2ms	1.2ms	169.3	802	creaadd_exersave
xlsxwriter-constmem	1.6ms	1.9ms	1.5ms	1.6ms	169.3	609	creaadd_exersave
xlsxwriter	1.7ms	2.3ms	1.4ms	1.7ms	169.3	598	creaadd_exersave

tables — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.0ms	0.1ms	169.6	18K	opensheeexerclos
wolfxl	0.1ms	0.1ms	0.0ms	0.1ms	169.6	18K	opensheeexerclos
polars	0.3ms	0.4ms	0.3ms	2.0ms	170.1	3K	opensheeexerclos
openpyxl-readonly	0.9ms	0.9ms	0.8ms	0.9ms	169.6	1K	opensheeexerclos
tablib	1.3ms	1.3ms	1.2ms	1.3ms	170.1	799	opensheeexerclos
openpyxl	1.4ms	1.5ms	1.4ms	1.4ms	169.6	719	opensheeexerclos
pandas	1.5ms	1.7ms	1.5ms	1.5ms	169.6	667	opensheeexerclos
pyexcel	1.7ms	1.8ms	1.7ms	1.7ms	169.6	575	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.1ms	0.1ms	0.1ms	0.1ms	169.6	8K	creaadd_exersave
rust_xlsxwriter	0.3ms	0.3ms	0.2ms	0.3ms	169.6	4K	creaadd_exersave
pylightxl	0.3ms	0.3ms	0.2ms	0.3ms	169.6	4K	creaadd_exersave
wolfxl	0.3ms	0.3ms	0.3ms	0.3ms	169.6	4K	creaadd_exersave
pyexcel	1.2ms	1.2ms	1.1ms	1.2ms	169.6	860	creaadd_exersave
tablib	1.2ms	1.3ms	1.1ms	1.2ms	170.1	860	creaadd_exersave
openpyxl	1.2ms	1.6ms	1.1ms	1.2ms	169.6	848	creaadd_exersave
pandas	1.2ms	1.4ms	1.2ms	1.2ms	169.6	809	creaadd_exersave
xlsxwriter	1.5ms	1.8ms	1.4ms	1.5ms	169.6	656	creaadd_exersave
xlsxwriter-constmem	1.5ms	1.8ms	1.4ms	1.5ms	169.6	651	creaadd_exersave

text_formatting — 14 libraries

Read

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
python-calamine	0.1ms	0.1ms	0.1ms	0.1ms	163.4	12K	opensheeexerclos
wolfxl	0.1ms	0.2ms	0.1ms	0.1ms	163.5	7K	opensheeexerclos
polars	0.3ms	0.3ms	0.2ms	0.8ms	163.8	4K	opensheeexerclos
openpyxl-readonly	1.4ms	1.6ms	1.3ms	1.4ms	163.8	731	opensheeexerclos
pylightxl	1.5ms	1.5ms	1.4ms	1.5ms	163.5	676	opensheeexerclos
tablib	1.6ms	1.9ms	1.6ms	1.6ms	164.1	612	opensheeexerclos
openpyxl	1.7ms	1.7ms	1.6ms	1.7ms	163.1	603	opensheeexerclos
pyexcel	1.7ms	2.0ms	1.6ms	1.7ms	163.6	588	opensheeexerclos
pandas	1.8ms	1.9ms	1.8ms	1.8ms	163.7	547	opensheeexerclos

Write

Library	p50 (ms)	p95 (ms)	min (ms)	CPU p50	RSS (MB)	Throughput	Phase Breakdown
xlwt	0.3ms	0.4ms	0.3ms	0.3ms	163.7	3K	creaadd_exersave
wolfxl	0.4ms	0.4ms	0.3ms	0.4ms	163.5	3K	creaadd_exersave
rust_xlsxwriter	0.4ms	0.5ms	0.4ms	0.4ms	163.5	2K	creaadd_exersave
pylightxl	0.4ms	0.5ms	0.4ms	0.4ms	163.5	2K	creaadd_exersave
pyexcel	1.3ms	1.5ms	1.3ms	1.3ms	163.7	745	creaadd_exersave
tablib	1.4ms	1.5ms	1.3ms	1.4ms	164.1	732	creaadd_exersave
pandas	1.5ms	1.9ms	1.4ms	1.5ms	163.8	658	creaadd_exersave
openpyxl	1.7ms	1.8ms	1.7ms	1.7ms	163.1	578	creaadd_exersave
xlsxwriter	2.0ms	2.4ms	1.8ms	2.0ms	163.4	501	creaadd_exersave
xlsxwriter-constmem	2.1ms	2.3ms	1.9ms	2.0ms	163.8	474	creaadd_exersave

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

1055 total diagnostics

975

data_mismatch

invalid_input

internal

By Severity

1055

error

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	write	Expected values did not match actual values: expected={'type': 'date', 'value': '2026-02-04'}, actual={'type': 'string', 'value': '2026-02-04'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	write	Expected values did not match actual values: expected={'type': 'datetime', 'value': '2026-02-04T10:30:45'}, actual={'type': 'string', 'value': '2026-02-04T10:30:45'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	write	Expected values did not match actual values: expected={'type': 'boolean', 'value': True}, actual={'type': 'number', 'value': 1}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	cell_values	write	Expected values did not match actual values: expected={'type': 'boolean', 'value': False}, actual={'type': 'number', 'value': 0}	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': '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.
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.
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': 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	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	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	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': '#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	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': '$#,##0.00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '0.00%'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': 'yyyy-mm-dd'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '0.00E+00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	write	Expected values did not match actual values: expected={'number_format': '"USD" 0.00'}, actual={'number_format': 'General'}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	number_formats	read	Expected values did not match actual values: expected={'number_format': '$#,##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	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	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	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={'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.
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.
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
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.
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
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.
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
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.
invalid_input	error	alignment	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'v_align': 'center'}, 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.
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.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'wrap': True}, 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.
data_mismatch	error	alignment	write	Expected values did not match actual values: expected={'rotation': 45}, 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.
data_mismatch	error	alignment	write	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={'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.
data_mismatch	error	alignment	write	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	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={'wrap': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	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	write	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	write	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={'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.
data_mismatch	error	alignment	write	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	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={'wrap': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	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	write	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	write	Expected values did not match actual values: expected={'indent': 2}, 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.
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={'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={'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.
data_mismatch	error	alignment	write	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	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={'wrap': True}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	alignment	write	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	write	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	write	Expected values did not match actual values: expected={'indent': 2}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'medium', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'thick', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'double', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'dashed', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'dotted', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'dashDot', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'dashDotDot', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_top': 'thin', 'border_bottom': None, 'border_left': None, 'border_right': None}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_top': None, 'border_bottom': 'thin', 'border_left': None, 'border_right': None}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_top': None, 'border_bottom': None, 'border_left': 'thin', 'border_right': None}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_top': None, 'border_bottom': None, 'border_left': None, 'border_right': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_diagonal_up': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_diagonal_down': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_diagonal_up': 'thin', 'border_diagonal_down': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#8B4513'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_top': 'thick', 'border_bottom': 'thin', 'border_left': 'medium', 'border_right': 'dashed'}, actual={}	Adapter returned a value that differs from benchmark expectations.
data_mismatch	error	borders	read	Expected values did not match actual values: expected={'border_top_color': '#FF0000', 'border_bottom_color': '#00FF00', 'border_left_color': '#0000FF', 'border_right_color': '#FFFF00'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'medium', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'thick', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'double', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'dashed', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'dotted', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'dashDot', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'dashDotDot', 'border_color': '#000000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_top': 'thin', 'border_bottom': None, 'border_left': None, 'border_right': None}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_top': None, 'border_bottom': 'thin', 'border_left': None, 'border_right': None}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_top': None, 'border_bottom': None, 'border_left': 'thin', 'border_right': None}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_top': None, 'border_bottom': None, 'border_left': None, 'border_right': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_diagonal_up': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_diagonal_down': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_diagonal_up': 'thin', 'border_diagonal_down': 'thin'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#FF0000'}, actual={}	Adapter returned a value that differs from benchmark expectations.
invalid_input	error	borders	read	TypeError: expected string or bytes-like object, got 'NoneType'	Input workbook could not be opened by this adapter.
data_mismatch	error	borders	write	Expected values did not match actual values: expected={'border_style': 'thin', 'border_color': '#0000FF'}, actual={}	Adapter returned a value that differs from benchmark expectations.