Claude Skill Verified

XLSX

Create, edit, and analyze Excel spreadsheets with formulas, validation, and multi-format support.

Install → View source

Verified trust tier

This skill comes from an official source or has recent low-risk security audit results.

What is XLSX?

Xlsx helps developers and operators create, update, and analyze Excel spreadsheets with formulas, formatting, recalculation, and error checks. It supports xlsx, xlsm, csv, and tsv workflows, making it useful for reporting, finance operations, spreadsheet automation, and structured data processing.

At a glance

  • Published by anthropics
  • 133,600 GitHub stars
  • 78,000 installs reported by the source registry
  • Source is public: read it before installing
Installs78,000
GitHub stars133,600
Owneranthropics

How to install

1
Make sure you have Claude Code installed. Run claude in your terminal — if it opens, you're ready.
2
Open the source page for this tool and follow the install instructions in its README.
3
After installing, type / inside Claude Code to see your installed skills and invoke them by name.
Go to install page →