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xlsx
Anthropic's official Excel skill: read and write spreadsheets with formulas, formatting, multiple sheets, and data analysis.
Documents & OfficeBEGINNERby Anthropic
Claude CodeClaude DesktopClaude.aiClaude APIexcelspreadsheetsdata
Key Information
Install / Load
/plugin install document-skills@anthropic-agent-skills
How This Skill Works
Official Anthropic skill for .xlsx spreadsheets: create and edit workbooks, write live formulas, apply formatting, handle multiple sheets, and run analysis.
How it works:
- Ships SKILL.md plus openpyxl-based tooling so the agent preserves formulas and formatting instead of flattening them to values.
- Activates when a task involves spreadsheets.
Install via the Claude Code plugin marketplace, or use on paid Claude.ai plans and the Skills API. Source-available — see the repository.
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