Skilletxlsx
Spreadsheet manipulation: formulas, charts, data transformations.
What it is
xlsx is a document processing skill for AI coding agents. Maintained by Anthropic. Skills are small, focused packages of instructions and tools that an agent loads on demand, so it gains this capability only when the task calls for it, keeping its context lean the rest of the time.
When to use it
Reach for xlsx whenever your task falls under document processing. Because it ships as a portable skill, it works across Claude Code, Cursor, Codex and any agent that reads the SKILL.md format.
How to install
This is an official Anthropic skill. Add it to your `~/.claude/skills` directory (or your project's `.claude/skills`) and Claude will load it automatically when relevant.
Source
View the full skill, documentation and license at the source repository: https://github.com/anthropics/skills/tree/main/skills/xlsx
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