Summary
This handles the three Excel problems Claude usually hits on macOS: creating formatted reports with openpyxl (investment banking color conventions included), parsing complex xlsm files that openpyxl chokes on using stdlib zipfile and xml parsing, and controlling Excel windows via AppleScript. The parsing approach is genuinely useful because it works around corrupted DefinedNames in financial models and handles the ZIP-based xlsx structure directly when openpyxl fails. Includes a decision tree for tool selection and specific fixes for "Formula removed" corruption in investment bank files. The formatting patterns follow actual IB standards with proper RGB codes for input cells, calculations, and cross-sheet references.
Install to Claude Code
npx -y skills add daymade/claude-code-skills --skill excel-automation --agent claude-codeInstalls into .claude/skills of the current project.
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →First SeenJun 3, 2026
