
/plugin marketplace add anthropics/skillsxlsx — Handles any task involving spreadsheet files (.xlsx, .xlsm, .xltx, .csv, .tsv): open, read, edit, add columns, calculate formulas, format, create charts, clean up messy data, or create a new spreadsheet.
What is xlsx?
xlsx is a skill (a capability for AI agents such as Claude, Codex and Cursor) on GitHub (anthropics/skills). Handles any task involving spreadsheet files (.xlsx, .xlsm, .xltx, .csv, .tsv): open, read, edit, add columns, calculate formulas, format, create charts, clean up messy data, or create a new spreadsheet.
How to install xlsx
See the ⚡ Quick install section at the top of the page — it has a ready-to-copy command taken from the author’s README, plus where to run it. For the full instructions, see the README at the end of the page.
Frequently asked questions about xlsx
Is xlsx free?
Yes. xlsx is an open-source project on GitHub, so you can download and use it for free.
Is xlsx hard to install?
No. You only need to run one command above.
Download & source code
The source code, README and latest updates of xlsx are at github.com/anthropics/skills/skills/xlsx. The star count and update date on this page sync automatically from GitHub.
📖 Full guide
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