Excel & Spreadsheet Automation

About

The xlsx skill empowers Claude to handle complex spreadsheet tasks, ranging from automated financial modeling to advanced data analysis. It supports creating new workbooks, modifying existing templates while preserving styles, and performing rigorous formula validation using a built-in recalculation engine. By combining the power of pandas for data manipulation and openpyxl for precision formatting, this skill ensures all spreadsheets follow professional standards—including specific color-coding for inputs and calculations, consistent number formatting, and fully documented hardcodes.

Key Features

• Industry-standard financial modeling color conventions and formatting
• Automated formula creation and validation with zero-error enforcement
• Preservation of existing spreadsheet templates and legacy styles
• 13 GitHub stars
• Headless recalculation and error scanning using LibreOffice integration
• High-performance data analysis and visualization using pandas

Use Cases

• Analyzing large CSV or Excel datasets to produce formatted summary reports
• Updating existing enterprise templates without breaking legacy formatting or formulas
• Generating dynamic financial models with automated projections and assumptions