OfficialDocuments
Claude Excel skill (Anthropic XLSX)
Builds and edits spreadsheets with formulas, formatting and charts.
Claude Excel skill is Anthropic’s skill for spreadsheets with formulas, formatting and charts.
The Claude Excel skill builds and edits spreadsheets with formulas, formatting and charts. It handles any task where a spreadsheet is the input or output, including .xlsx, .xlsm, .csv and .tsv files, and guides formula-driven models, cleanup of messy data and chart creation. It ships in Anthropic’s source-available document-skills plugin for Claude Code, comes pre-installed in the Claude apps on paid plans and works through the Skills API.
Install
From the skill’s source repository:
/plugin marketplace add anthropics/skills
/plugin install document-skills@anthropic-agent-skills
- Skill
- XLSX (Excel)
Questions
Which file types does the Claude Excel skill handle?
.xlsx, .xlsm, .csv and .tsv files, whenever a spreadsheet is the input or output.
What spreadsheet work does the Excel skill guide?
Formula-driven models, cleanup of messy data and chart creation.
How do I install the Excel skill in Claude Code?
Add the anthropics/skills marketplace, then install the document-skills plugin with the two commands above.
Is the Excel skill open source?
No. Its license is proprietary and source-available, not open source; see LICENSE.txt in the skill folder.
Sources
- XLSX (Excel) source
- License: Proprietary, source-available (not open source); see LICENSE.txt in the skill folder
Checked October 2, 2026.
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