xlrdvsXlsxWriter

How 10 AI models weigh xlrd against XlsxWriter on the 1 buying question where both came up.

xlrd: 98%of answers named it
XlsxWriter: 100%of answers named it
Placed higher: 6–34times xlrd vs XlsxWriter, over 40 model rankings that listed either
Models leaning: 1–9toward xlrd vs XlsxWriter

Which models prefer which

Share of each model's answers that named each product, and how often its ranking put one above the other (a product listed beats one left off) · On the 1 shared question, every wording

Model	xlrd	XlsxWriter	Placed higher	Leans
Claude Haiku 5.5	100%	100%	0–4	XlsxWriter
GPT-6 Luna	88%	100%	0–4	XlsxWriter
Gemini 4 Argon	100%	100%	0–4	XlsxWriter
Qwen 3.8 Flash	88%	100%	0–4	XlsxWriter
DeepSeek V4 Pro	100%	100%	1–3	XlsxWriter
GLM-5.3	100%	100%	0–4	XlsxWriter
Kimi K3	100%	100%	0–4	XlsxWriter
MiniMax M3	100%	100%	0–4	XlsxWriter
Mistral Large 4	100%	100%	1–3	XlsxWriter
Nemotron 3 Ultra	100%	100%	4–0	xlrd

What the models say about xlrd

One reason per model, from the shared questions

Claude Haiku 5.5Classic reader for legacy xls files; reading xlsx support was removed.
GPT-6 LunaA lightweight reader for older .xls files; limited to reading.
Gemini 4 ArgonThe reliable standard for extracting data from legacy xls spreadsheets.
Qwen 3.8 FlashClassic reader, still needed for legacy .xls files.
DeepSeek V4 ProClassic .xls reader; still essential for legacy Excel 97-2003 files.
GLM-5.3Handles legacy xls files well.
Kimi K3Still the go-to for legacy .xls files, read-only but reliable.
MiniMax M3Classic reader for legacy .xls files, still widely used.
Mistral Large 4Still useful for reading legacy .xls files, though .xlsx support was removed.
Nemotron 3 UltraClassic for reading legacy .xls files only

What the models say about XlsxWriter

One reason per model, from the shared questions

Claude Haiku 5.5Excellent for creating rich, formatted new xlsx files; write-only though.
GPT-6 LunaBest for creating polished .xlsx workbooks, charts, formatting, and formulas; not for reading.
Gemini 4 ArgonSuperior performance and formatting features when creating complex, chart-heavy Excel files from scratch.
Qwen 3.8 FlashBest-in-class for writing rich, formatted xlsx output.
DeepSeek V4 ProFastest .xlsx creation with rich formatting, charts, and conditional formatting.
GLM-5.3Fast, low-memory streaming writer for large xlsx files.
Kimi K3Fastest, richest formatting for writing new Excel files from scratch.
MiniMax M3Fastest writer, rich formatting and chart support for new files.
Mistral Large 4Best for creating Excel files with advanced formatting, charts, and formulas.
Nemotron 3 UltraExcellent for creating formatted .xlsx files fast

Tracked since October 25, 2026. Each time the panel answers these questions again, both shares are added here.

Question by question

Share of all answers that named each, every wording pooled, with its place among every product named · Both-named questions first

Question	xlrd	XlsxWriter
Best Python libraries for reading and editing Excel files	98% #4	100% #1