Individual skill
xlsx
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
skills/xlsx/SKILL.md
Source commit 12234a11a9d96acef85577afb1fa5682169d6171
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- Yes
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- Observed behavior
- Local scripts
- Last checked
- Nov 6, 2026
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- Repository stars (not skill ratings)
- 315
- Repository last updated
- Oct 20, 2026
- License
- Apache-2.0
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LICENSE.txtdoc · 1,467 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesSKILL.mdcore · 10,631 bytesrecalc.pyruns · 6,264 bytes
Read excerpt
# Requirements for Outputs
## All Excel files
### Zero Formula Errors
- Every Excel model MUST be delivered with ZERO formula errors (#REF!, #DIV/0!, #VALUE!, #N/A, #NAME?)
### Preserve Existing Templates (when updating templates)
- Study and EXACTLY match existing format, style, and conventions when modifying files
- Never impose standardized formatting on files with established patterns
- Existing template conventions ALWAYS override these guidelines
## Financial models
