XLSX creation, editing, and analysis
| Task | Approach |
|---|---|
| Create or edit with formulas/formatting | openpyxl — see gotchas below |
| Bulk data in or out | pandas (read_excel, to_excel) |
| Quick look at a sheet | markitdown file.xlsx — ## SheetName per sheet; reads .xlsm too. No cell coordinates, so don't plan edits from it |
| Read a model (formulas and values) | two load_workbook passes — see gotchas |
openpyxl,pandas, andmarkitdownare preinstalled — do not runuv pip installfirst; write the script and import directly. Only if an import fails (or themarkitdowncommand is missing):uv pip installthe missing package.
Script paths below are relative to this skill's directory.
Requirements for every output
- Professional font (Arial, Times New Roman) throughout, unless the user says otherwise.
- Zero formula errors. Never ship while
recalc.pyreportserrors_found. If you think an error predates you, prove it: load the original withdata_only=Trueand look at that cell. An error you introduced looks exactly like one you inherited. - Use formulas, never hardcoded results. Write `sheet['…