xlsx Claude Code Skill
Claude Code SkillClaude CodeDocuments & Content CreationThe explanation below is AI-generated. Please verify it against the sources.
This skill equips the assistant to open, edit, create, or convert spreadsheet files such as xlsx, xlsm, xltx, csv, and tsv whenever a spreadsheet is the main input or output. It relies on openpyxl for formulas and formatting, pandas for bulk data transfer, markitdown for quick sheet previews, and a LibreOffice-based recalculation script to compute and verify formula results. The workflow enforces quality rules like professional fonts, live formulas instead of hardcoded numbers, and documented assumptions. It also covers cleaning up messy or malformed tabular data into a proper spreadsheet.
What you can do with xlsx
- Open and edit existing xlsx/xlsm/xltx/csv/tsv files: add columns, build formulas, apply formatting, create charts, or clean messy data
- Convert tabular data between different spreadsheet or text formats
- Recalculate formulas through a LibreOffice-driven script and confirm no formula errors remain
- Apply structured financial-model conventions such as color-coded inputs/formulas and standardized number formats
- Restructure disorganized tabular data with misplaced headers or junk rows into a clean spreadsheet
Sources
History of xlsx
- Claude Code Skill Updated skill content (SKILL.md) of xlsx
- Claude Code Skill Updated the official description of xlsx