# XLSX

Create/edit/analyze/verify spreadsheet workbooks including XLSX/CSV/TSV.

- Repository: https://github.com/codewhale-hq/Codewhale (41164 stars)
- Category: Documents
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add codewhale-hq/Codewhale --skill xlsx -g -a claude-code -y`
Codex: `npx skills add codewhale-hq/Codewhale --skill xlsx -g -a codex -y`
Cursor: `npx skills add codewhale-hq/Codewhale --skill xlsx -g -a cursor -y`
Gemini CLI: `npx skills add codewhale-hq/Codewhale --skill xlsx -g -a gemini-cli -y`

## Description

Create/edit/analyze/verify spreadsheet workbooks including XLSX/CSV/TSV.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Xlsx

## When to use
Use for spreadsheets, tabular analysis, formulas, and charts in workbooks.

## Compatibility
`spreadsheets` is a compatibility alias for this skill.

## Workflow
1. Prefer structured tables with clear headers.
2. Keep formulas auditable.
3. Verify by reopening and checking key cells/aggregates.