Skill Locker / analysisMEMBERS · CM-SK

Workbook Auditor

Points Cowork at any Excel workbook and gets back an honest audit: what each sheet does, where the formulas end and the hardcoded overrides begin, which merged cells and mixed types will break analysis — plus a prioritized cleanup proposal it never executes itself.

Coworkupdated June 2026members
⤓ Download SKILL.mdmembersinstall to: OneDrive /Documents/Cowork/skills/workbook-auditor/SKILL.md

Why this skill exists

Every organization runs on a handful of workbooks nobody fully understands anymore. The person who built the model left; the "temporary" override from 2024 is still there; the SUM range stops at row 500 and the data now reaches 612. These files mostly still produce numbers — which is exactly the problem, because a workbook that errors gets fixed and a workbook that's quietly wrong gets presented.

This matters double in the Copilot era. "Analyze this spreadsheet" works beautifully on clean tabular data and fails silently on merged headers, numbers-stored-as-text, and three tables sharing a sheet. Before you trust any AI analysis of a legacy workbook, someone has to establish what the workbook actually is. That someone can now be Cowork — under strict rules.

The rest is for members.

Full operational depth — the workarounds, the scripts, the deploy steps, and every downloadable artifact. One membership, every guide, skill pack, agent, and workflow in the hangar. From $5/month.

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