Official · by Anthropic
Excel spreadsheets (XLSX) Claude skill
The Excel spreadsheets (XLSX) skill helps an AI assistant create, edit, read, and clean up XLSX spreadsheet files.
- Proprietary (source available) licence
- ★ 182,168 on GitHub (whole repository)
- Verified against its source 19 Oct 2026
What the Excel spreadsheets (XLSX) skill does
The assistant can create or edit spreadsheets with formulas and formatting using openpyxl, and move bulk data in or out with pandas. It can also take a quick look at a sheet using markitdown. The skill is also used when cleaning or restructuring messy tabular data files.
What it covers
- Create or edit spreadsheets with formulas and formatting using openpyxl
- Bulk data reading and writing with pandas
- Quick preview of sheet contents with markitdown
- Cleaning or restructuring messy tabular data into proper spreadsheets
How to install it
In Claude Code
/plugin marketplace add anthropics/skills/plugin install document-skills@anthropic-agent-skills