Anthropic

Xlsx — Documentation skill for Claude Code

Documentation official Intermediate

Create, edit, and analyze Excel spreadsheets with formulas, formatting, and visualization.

How to install Xlsx

Installs to ~/.claude/skills/xlsx/

Terminal

git clone --depth 1 https://github.com/anthropics/skills /tmp/skills \
  && mkdir -p ~/.claude/skills \
  && cp -r /tmp/skills/skills/xlsx ~/.claude/skills/xlsx

Clones the whole repository, because a skill folder can carry scripts and resources beside its SKILL.md.

What Xlsx does

Create, edit, and analyze Excel spreadsheets with support for formulas, formatting, data analysis, visualization, and professional color-coded financial models. Enforces zero formula errors and consistent professional styling.

The README for anthropics/skills is shared by 21 entries and is shown on algorithmic-art.

When Claude uses Xlsx

Trigger

When a spreadsheet file is the primary input or output (.xlsx, .xlsm, .csv, .tsv)

Tools it reaches for:

BashWriteRead

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