spreadsheets

Create, edit, analyze, format, and verify XLSX, CSV, and TSV spreadsheet artifacts.

SKILL.md

GitHub

Spreadsheets

  • Use XLSX for formatted workbooks and CSV/TSV only when formatting is unnecessary.
  • Preserve formulas and types, use clear headers, freeze useful panes, size columns, and format dates/numbers explicitly.
  • Reopen the completed workbook, verify sheets, formulas, dimensions, and representative values.
  • Do not return a script in place of the requested spreadsheet.