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#2081 Overall#478 in MediaVerified SKILL.md

Xlsx

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, .xltx, .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.

Claude CodeCodexSKILL.md Official publisher
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Overview

What It Does

Xlsx packages a focused media & files workflow for an AI agent. 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, .xltx, .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. It is best suited to users who can review the resulting actions and provide only the accounts, files, or command access needed for the task. It is not a substitute for human approval on destructive, financial, security-sensitive, or public-facing actions.

Task ideas

Popular Use Cases

  • Create or edit a common file format
  • Extract information from uploaded files
  • Convert content into a polished deliverable
  • Automate repetitive media operations

Installation

Install this Agent Skill

Claude Code

npx skills add https://github.com/anthropics/skills --skill xlsx

Commands derived from the public GitHub SKILL.md record. Checked 2026-09-02. Review the source before running them.

Before you start

Requirements

Claude CodeRequired / review
CodexRequired / review
Public SKILL.md sourceRequired / review
Review instructions and requested permissions before installationRequired / review
Paid serviceCheck source
Supported systemCheck source

Popularity context

Why It’s Popular

Xlsx is a verified Agent Skill from anthropics with a public SKILL.md, compatible with Claude Code, Codex.

Alternatives

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