Open XML SDKvsopenpyxl
How 10 AI models weigh Open XML SDK against openpyxl on the 2 buying questions where both came up.
- Open XML SDK
- 9%of answers named it
- openpyxl
- 24%of answers named it
- Placed higher
- 5–17times Open XML SDK vs openpyxl, over 22 model rankings that listed either
- Models leaning
- 2–7toward Open XML SDK vs openpyxl; 1 even
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 2 shared questions, every wording
| Model | Open XML SDK | openpyxl | Placed higher | Leans |
|---|---|---|---|---|
| Claude Haiku 5.5 | 0% | 25% | 0–2 | openpyxl |
| GPT-6 Luna | 19% | 6% | 1–0 | Open XML SDK |
| Gemini 4 Argon | 0% | 0% | 0–0 | Even |
| Qwen 3.8 Flash | 0% | 38% | 0–1 | openpyxl |
| DeepSeek V4 Pro | 19% | 38% | 1–2 | openpyxl |
| GLM-5.3 | 13% | 13% | 1–0 | Open XML SDK |
| Kimi K3 | 13% | 19% | 0–2 | openpyxl |
| MiniMax M3 | 13% | 31% | 1–2 | openpyxl |
| Mistral Large 4 | 6% | 25% | 1–3 | openpyxl |
| Nemotron 3 Ultra | 6% | 44% | 0–5 | openpyxl |
What the models say about Open XML SDK
One reason per model, from the shared questions
- GPT-6 Luna
Low-level .NET toolkit for manipulating PowerPoint Open XML packages via Python interop.
- DeepSeek V4 Pro
Microsoft's own library for .docx/.xlsx, fast and lightweight.
What the models say about openpyxl
One reason per model, from the shared questions
- Claude Haiku 5.5
Widely used Python library for reading and writing Excel .xlsx files.
- Qwen 3.8 Flash
Free, dependable pure-Python choice for xlsx read/write.
- DeepSeek V4 Pro
Dominant Python choice for Excel files, supports formulas and styling.
- Kimi K3
Most practical Excel read/write SDK for agent automation.
- MiniMax M3
Go-to Python library for creating and modifying Excel xlsx files.
- Mistral Large 4
De facto Python standard for Excel read/write with solid performance and features.
- Nemotron 3 Ultra
Top Python library for Excel xlsx read/write.
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 | Open XML SDK | openpyxl |
|---|---|---|
| Best SDKs for AI agents that handle Office and PDF files | 13% #22 | 29% #6 |
| Best Python libraries for PowerPoint files | 5% #27 | 19% #10 |
| Best Python libraries for reading and editing Excel files | · | 100% #1 |