# When should I use xlwings Lite vs Claude in Excel?

They play different games. **Claude in Excel** is an AI assistant for Excel (min $20 Claude Pro): great for models, scenarios, complex formulas, validation sheets and a built-in Python sandbox - but it cannot make API calls, web-scrape, connect to external databases, run automations, or guarantee the same result each run.

**xlwings Lite** is pure Python inside Excel (free): API calls, web scrapes, remote databases, local folders, PDF/HTML reports, image processing - built for advanced automation and full-stack Excel apps, but it is not an autonomous assistant.

Rule of thumb: Claude in Excel for Excel heavy-lifting and one-off analysis; xlwings Lite for automation and tools; and if you need Excel to reach a backend by natural language, use Claude in Excel plus an MCP connector. For ML models, Jupyter/Colab or Claude Code are usually better. Full comparison: [https://www.tigzig.com/post/python-in-excel-claude-vs-xlwings-lite](https://www.tigzig.com/post/python-in-excel-claude-vs-xlwings-lite). Excel hub: [https://www.tigzig.com/claude-for-analytics](https://www.tigzig.com/claude-for-analytics). xlwings Lite starter: [https://www.tigzig.com/xlwings-starter](https://www.tigzig.com/xlwings-starter).

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Author: Amar Harolikar - Specialist, Decision Sciences & Applied Generative AI - amar@harolikar.com - https://www.linkedin.com/in/amarharolikar
Source: https://www.tigzig.com/agents-faq/xlwings-lite-vs-claude-in-excel-when-to-use
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