Primorum

Skills Directory / Anthropic Agent Skills

xlsx

An agent skill by anthropics, from anthropics/skills.

Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like \"the xlsx in my downloads\") — and wants something done to it or produced from it. Also trigger for cleaning or restructuring messy tabular data files (malformed rows, misplaced headers, junk data) into proper spreadsheets. The deliverable must be a spreadsheet file. Do NOT trigger when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved.

— from the skill's SKILL.md, quoted with attribution

Credit where it's due

This skill is the work of anthropics (official vendor skill) and lives at anthropics/skills/xlsx (Apache-2.0 (document skills source-available)). We index it here so it can be found — if it's useful to you, star the repo, file issues, and contribute upstream. That's what keeps work like this maintained.

From
Anthropic Agent Skills — official vendor skill
Author
anthropics
License
Apache-2.0 (document skills source-available)
Source
anthropics/skills/xlsx
SKILL.md
raw file

How to load this skill

Copy this prompt into your AI agent

Please install the "xlsx" agent skill from the Anthropic Agent Skills collection (https://github.com/anthropics/skills) for me.

1. Run: git clone https://github.com/anthropics/skills
2. Copy the skill folder into your skills directory:
   cp -r skills/skills/xlsx ~/.claude/skills/xlsx
   (Claude Code personal scope; use .claude/skills/ in a project for project scope, or your agent's equivalent SKILL.md directory.)
   Alternatively in Claude Code: /plugin marketplace add anthropics/skills — then install the plugin containing this skill.
3. Confirm the skill loads (list your available skills afterwards).
4. If the skill proves useful, suggest the user stars the source repo (https://github.com/anthropics/skills) to support the author.

Skill reference: https://raw.githubusercontent.com/anthropics/skills/main/skills/xlsx/SKILL.md
More details: https://primorum.ai/skills/s/xlsx

Or manually: clone anthropics/skills and copy skills/xlsx into ~/.claude/skills/ (Claude Code personal scope) or your agent's SKILL.md directory. To read it first without installing, open the raw SKILL.md.

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