XLSX

XLSX is a Data skill for Claude Code, published by OpenCoworkAI in open-cowork.

2K stars278 forkson OpenCoworkAI/open-coworkAdded 2026/08/18+1% in starsRepository updated 2026/08/03

ai-agentai-codingai-toolsanthropicclaude-codecoding-agentcomputer-usedesktop-appelectronmcpmulti-modelopen-coworksandboxskills

Install in seconds

Install XLSX

Copy XLSX into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/OpenCoworkAI/open-cowork/tree/main/.claude/skills/xlsx ~/.claude/skills/xlsx

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/OpenCoworkAI/open-cowork.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .claude/skills/xlsx/SKILL.md in OpenCoworkAI/open-cowork
Installs to: ~/.claude/skills/xlsx
Collection: One of 5 skills cataloged from this repository
Category: Data — 668 skills

What XLSX does

XLSX creates, edits, and analyzes .xlsx, .xlsm, .csv, and .tsv files with formulas, formatting, and recalculation. Use it when you need to build financial models, read or clean spreadsheet data, or ensure zero formula errors.

XLSX is cataloged under Data on DirSkills. XLSX comes from a repository tagged ai-agent, ai-coding, ai-tools, anthropic and claude-code.

Documentation

README

Excerpt

Every Excel model MUST be delivered with ZERO formula errors (#REF!, #DIV/0!, #VALUE!, #N/A, #NAME?)

Preserve Existing Templates (when updating templates)

Study and EXACTLY match existing format, style, and conventions when modifying files
Never impose standardized formatting on files with established patterns
Existing template conventions ALWAYS override these guidelines

Financial models

Color Coding Standards

Unless otherwise stated by the user or existing template

This is the opening of the README. Read the full README on GitHub.

Frequently asked about XLSX

What else does OpenCoworkAI publish alongside XLSX?
XLSX is one of 5 skills that DirSkills catalogs from OpenCoworkAI/open-cowork, the repository it ships in. Its siblings there include Docx, PDF Processing and PowerPoint. Each one is a separate skill with its own page in this directory, installs the same way XLSX does, and is maintained by OpenCoworkAI in that same repository. The rest of the collection is listed on the OpenCoworkAI/open-cowork page.
How does XLSX compare to other Data skills?
XLSX ranks #345 by stars among the 668 Data skills in this catalog. The most-starred ones next to it are Benchmark Methodology, Jupyter Notebook and Solana. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of XLSX against them. Open each page to compare what they document and how they install.