What it is
The official xlsx skill is for spreadsheet files such as .xlsx, .xlsm, .csv, and .tsv. Its source guidance covers opening, reading, editing, fixing data, adding columns and formulas, formatting, charting, and cleaning.
Why it is useful
Spreadsheet work often fails when an agent sees only a text preview. A dedicated skill pushes the agent toward workbook-aware operations and verification.
Best uses
- Clean and transform spreadsheet data.
- Add formulas, derived columns, formatting, or charts.
- Inspect workbook structure before changing a file.
Notes
For financial or operational spreadsheets, review formulas and totals manually after any generated change.