xlsx

Create, edit, and analyze Excel spreadsheets with formulas and pandas.

557|98|Updated Nov 7, 2025
One-click install
npx skills add https://github.com/jimmc414/Kosmos --skill xlsx-jimmc414
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: xlsx
Source: https://github.com/jimmc414/Kosmos/tree/main/kosmos-reference/kosmos-claude-scientific-writer/.claude/skills/document-skills/xlsx
Command: npx skills add https://github.com/jimmc414/Kosmos --skill xlsx-jimmc414

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires openpyxl, pandas, libreoffice, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a comprehensive toolkit for creating, editing, and analyzing Excel spreadsheets, ensuring data integrity and professional formatting.

Core Features & Use Cases

  • Spreadsheet Creation & Editing: Generate new Excel files or modify existing ones with data, formulas, and formatting using openpyxl.
  • Data Analysis & Visualization: Leverage pandas for powerful data manipulation, analysis, and visualization.
  • Formula Recalculation & Error Checking: Ensure all formulas are correctly calculated and free of errors using the recalc.py script, which integrates with LibreOffice.
  • Use Case: Automatically generate a financial projection model in Excel, populate it with assumptions, create complex formulas, and then verify that all calculations are error-free and adhere to industry standards.

Quick Start

Use the xlsx skill to create a new Excel file named 'financial_model.xlsx' with sample data and formulas.

Frequently Asked Questions about xlsx

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create an Excel spreadsheet with formulas using openpyxl and pandas?

Create Excel spreadsheets with formulas using openpyxl for file manipulation and pandas for data analysis, generating formatted .xlsx files with calculated cells. The skill automates formula creation and applies professional formatting to your spreadsheet data.

Can I recalculate Excel formulas and check for errors without opening the file?

Recalculate Excel formulas and check for errors automatically using the integrated LibreOffice script, ensuring formula accuracy without manual file opening. The recalculation process validates all calculations and verifies the spreadsheet is error-free.

Does xlsx skill work with both .xlsx and .csv files for data analysis?

The xlsx skill works with both .xlsx and .csv files, enabling data analysis and manipulation using pandas. It supports creating new files or modifying existing ones while maintaining data integrity across both spreadsheet formats.

What's the best way to automate financial projection models in Excel?

Automate financial projection models in Excel by populating assumptions, creating complex formulas with openpyxl, and verifying calculations via LibreOffice recalculation. This approach generates error-free, industry-standard formatted spreadsheet models.

Do I need LibreOffice installed to use the xlsx skill for spreadsheet editing?

LibreOffice is required as a dependency to perform mandatory formula recalculation and error checking within the xlsx skill workflow. The integrated recalc.py script leverages LibreOffice to validate all spreadsheet calculations.

Why does pandas not calculate my Excel formulas when editing spreadsheets?

Pandas reads cell values rather than calculating formulas, requiring the LibreOffice-integrated recalc.py script to execute formula recalculation. The xlsx skill enforces this step to ensure all spreadsheet calculations are processed and verified.