Agent Native

xlsx

Creates, edits, and analyzes Excel spreadsheets with formulas, formatting, and data validation.

by SnykOfficial publisherNot reviewed

Identity proven by GitHub's verified organisation badge (snyk)

Agents
Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode
License
LicenseRef-Anthropic-Proprietary (restricted)
Pin
2d3ca36pinned Oct 9, 2026
Context cost
about 2,500 tokenswhen the skill loads
GitHub stars
3,126on snyk/agent-scan
Scripts
1 script

What it does

“Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas”
The author's description, from SKILL.md

Generated summary from the skill's own text

Creates, edits, and analyzes Excel spreadsheets with formulas, formatting, and data validation. The skill handles .xlsx, .xlsm, and CSV files using openpyxl for complex operations and pandas for data analysis, with automatic formula recalculation via LibreOffice.

When to use it

  • Building financial models with formulas and color-coded inputs
  • Reading and analyzing spreadsheet data with pandas
  • Modifying existing Excel files while preserving formulas
  • Creating multi-sheet workbooks with custom formatting

When not to

  • When formula errors must be avoided but LibreOffice is unavailable
  • Simple CSV export without Excel-specific formatting requirements

Install

Restricted license: install from the publisher's repository and read its terms.

These commands install from the publisher's repository and need no account.

skills CLI

npx skills add snyk/agent-scan --skill xlsx

Installs from the repository's default branch, which may have changed since the commit we checked.

GitHub CLI 2.90 or later

gh skill install snyk/agent-scan xlsx@2d3ca361e33452dcfb8e74f7b7db6db0ee08d59e

Installs the commit we checked (2d3ca36).

Copy by hand

Download the folder at 2d3ca36 and put it in .claude/skills/xlsx for Claude Code and in .agents/skills/xlsx for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode.

Skill folder on GitHub at 2d3ca36

Copy for your agent

A prompt for any coding agent. It installs this skill from GitHub at the pinned commit, copies the files as they are, and runs nothing unless you ask.

Prompt

Install the agent skill "xlsx" by Snyk.

Source, pinned to commit 2d3ca361e33452dcfb8e74f7b7db6db0ee08d59e:
https://github.com/snyk/agent-scan/tree/2d3ca361e33452dcfb8e74f7b7db6db0ee08d59e/tests/skills/xlsx

1. Download that folder at exactly this commit. Do not use the default branch.
2. Copy every file unchanged, keeping the folder structure, into .claude/skills/xlsx/ for Claude Code and .agents/skills/xlsx/ for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode. Create the folders if they do not exist.
3. Do not edit the files, and do not run any script in the folder unless I ask you to.
4. When you are done, list the files you copied and where you put them.

Its license is restricted or not stated. Show me the license terms from the repository before you copy anything.

Listing and checks: https://www.agentnative.dev/skills/snyk/xlsx

SKILL.md at the pin

The license of this skill does not let us show its files here.

View SKILL.md on GitHub at 2d3ca36

Files

3 files, 18 KB in total. Each file has a sha256 in the pin's manifest; the first 12 characters are shown.

Skill folder on GitHub at 2d3ca36
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Open roles at Snyk

1 open role on the jobs board

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The skills listed here are third-party software, collected from public GitHub repositories as a catalog of recent skills and provided as is. Agent Native does not write or control them and is not responsible for any harm, loss or damage caused by installing or using them. Labels and checks describe what we saw at one commit and are not a guarantee. Read a skill's files before you run it. Terms of use