Python in Excel: Field Guide & Practice Lab for AI-assisted xlwings Lite.
- Amar Harolikar
- Sep 3, 2025
- 1 min read
I am sharing my workflow and documents for using AI to reliably generate xlwings Lite Python code. This is not a theoretical guide. It's a set of practical tools and hard rules which I use day to day in my client projects.
๐ช๐ต๐ฎ๐'๐ ๐ถ๐ป ๐๐ต๐ฒ ๐ ๐น๐๐ถ๐ป๐ด๐ ๐๐ถ๐๐ฒ ๐ฃ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฒ ๐๐ฎ๐ฏ:
๐ญ. ๐๐ ๐๐ผ๐ฑ๐ฒ๐ฟ ๐๐ป๐๐๐ฟ๐๐ฐ๐๐ถ๐ผ๐ป ๐๐ถ๐น๐ฒ: My personal 1,855-line directive file. This is the core context you feed the AI to ensure it get clean, reliable xlwings Lite code.
๐ฎ. ๐ฆ๐๐ฒ๐ฝ-๐ฏ๐-๐ฆ๐๐ฒ๐ฝ ๐๐ถ๐ฒ๐น๐ฑ ๐๐๐ถ๐ฑ๐ฒ๐: Three hands-on modules (Data Manipulation, Cleaning, Campaign Build) with the exact workbooks, guides and codes I use to test and validate.
๐ฏ. ๐๐ถ๐๐ฒ ๐๐ฝ๐ฝ๐: xlwings Lite apps : web scrapers, database connect, AI schema detection, machine learning, quants reports
๐ง๐ต๐ฒ ๐๐ผ๐ฟ๐ฒ ๐ฃ๐ฟ๐ผ๐๐ผ๐ฐ๐ผ๐น ๐ณ๐ผ๐ฟ ๐๐ ๐ฐ๐ผ๐ฑ๐ฒ ๐ด๐ฒ๐ป๐ฒ๐ฟ๐ฎ๐๐ถ๐ผ๐ป
๐ญ. ๐ฆ๐ต๐ผ๐ - ๐๐ผ๐ป๐๐ฒ๐ ๐ ๐ถ๐ ๐๐ถ๐ป๐ด: Give the AI everything - images, schemas, rules.
๐ฎ. ๐ง๐ฒ๐น๐น - ๐๐ป๐๐๐ฟ๐๐ฐ๐, ๐๐ผ๐ป'๐ ๐๐๐๐๐บ๐ฒ : Be direct and iterate. One instruction is never enough.
๐ฏ. ๐๐ป๐๐ฝ๐ฒ๐ฐ๐ - ๐ง๐ฟ๐๐๐, ๐ฏ๐๐ ๐ฉ๐ฒ๐ฟ๐ถ๐ณ๐: All AI output must be validated. It makes mistakes.
๐๐ผ๐ ๐๐ผ ๐ด๐ฒ๐ ๐๐ต๐ฒ ๐บ๐ฎ๐๐ฒ๐ฟ๐ถ๐ฎ๐น๐
Go to app.tigzig.com (Path: xlwings Lite Practice Lab)
All guides, workbooks, apps and the AI instruction file are available for download.
๐ ๐น๐๐ถ๐ป๐ด๐ ๐๐ถ๐๐ฒ
Part of my primary stack.
Official site and docs: lite.xlwings.org
Created by Felix Zumstein.
๐ง๐๐๐ญ๐๐ ๐๐ผ-๐๐ป๐ฎ๐น๐๐๐
This is part of my open-source suite of 25+ tools for analysts and builders.
