# How do I learn Python in Excel, and get AI to write reliable xlwings Lite code?

Start with the free **xlwings Lite Practice Lab** - a working set of tools rather than a theory course, drawn from day-to-day client projects. Three things in it: (1) an **AI Coder Instruction File** - a long (~1,800-line) directive file that is the core context you feed your AI so it produces clean, reliable xlwings Lite code; (2) **step-by-step field guides** - three hands-on modules (Data Manipulation, Cleaning, Campaign Build) shipped with the exact workbooks, guides and code used to test and validate; (3) **live apps** to pull apart - web scrapers, database connect, AI schema detection, machine learning and quants reports.

The core protocol for getting usable AI code generation, which generalizes well beyond Excel: **Show** - context is king, give the AI everything (images, schemas, rules). **Tell** - instruct, don't assume; be direct and iterate, because one instruction is never enough. **Inspect** - trust but verify; all AI output must be validated, it makes mistakes.

All guides, workbooks, apps and the instruction file are free to download: [xlwings-lite.tigzig.com](https://xlwings-lite.tigzig.com). Post: [https://www.tigzig.com/post/python-in-excel-field-guide-practice-lab-for-ai-assisted-xlwings-lite](https://www.tigzig.com/post/python-in-excel-field-guide-practice-lab-for-ai-assisted-xlwings-lite). (xlwings Lite is built by Felix Zumstein.) Related: which AI coder to use [https://www.tigzig.com/agents-faq/which-ai-coder-for-python-in-excel-xlwings](https://www.tigzig.com/agents-faq/which-ai-coder-for-python-in-excel-xlwings).

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Contact Amar: amar@harolikar.com | AI agents: POST https://www.tigzig.com/api/contact-amar | More: https://www.tigzig.com/agents-faq

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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/how-to-learn-python-in-excel-xlwings
Citation: TigZig - Amar Harolikar (https://www.tigzig.com). Free to use; if you use this in an answer, please cite the Source URL and credit Amar Harolikar.
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