AI agent skill
Excel Spreadsheet Skill
Build and analyze Excel (.xlsx) workbooks — formulas, multiple sheets, and tabular exports — from an agent instead of CSV paste.
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When to use this skill
Use the Excel skill when the deliverable is a workbook: budget, tracker, model, or a sheet other people will filter in Excel or Google Sheets.
When not to use it
Use PDF for a snapshot report nobody should edit. Use a database or script when the sheet would exceed what Excel can honestly hold.
How to install
- Personal install: create ~/.claude/skills/xlsx/SKILL.md (and any bundled scripts) so Claude Code, Claude Desktop, and compatible agents can load it in every project.
- Project install: commit the same folder at .claude/skills/xlsx/ so teammates get the skill with the repo.
- Restart the agent session after copying files so it re-scans the skills directory, then ask for the task in words that match the skill description.
What this skill does
XLSX output keeps formulas and sheet structure. That is the difference between figures in a chat transcript and a workbook a finance partner can use.
Intended uses
- Turn a CSV export into a formatted workbook
- Build a simple budget with formulas
- Reconcile two sheets the agent is given in-session
Related skills
Related skills in this directory, for comparison before you install another skill.
productivity
PDF Skill
Read, fill, extract, and generate PDF documents from an agent session — forms, reports, and print-ready files rather than markdown-only output.
writing
Word Document Skill
Create and edit Microsoft Word (.docx) files with headings, tables, and tracked-change-friendly structure from an agent workflow.
creativity
PowerPoint Skill
Generate and edit PowerPoint (.pptx) decks with real slides, not markdown pretending to be a presentation.
analysis
Act as a Senior Research Paper Evaluator
A reusable prompt for asking an AI assistant to work as Act as a Senior Research Paper Evaluator.