What does this skill do?
XLSX Skill is the ultimate Excel tool for Claude. Create spreadsheets with complex formulas, edit files while preserving the formulas, analyze data, and generate visualizations, budgets, and financial models.
Create and edit Excel spreadsheets with Claude AI. Formulas, pivot tables, charts, and data analysis. Download for free.
Download Free · This SKILL →Free · No registration required · Compatible with Claude Code and Cowork
XLSX Skill is the ultimate Excel tool for Claude. Create spreadsheets with complex formulas, edit files while preserving the formulas, analyze data, and generate visualizations, budgets, and financial models.
Download the ZIP, unzip it into ~/.claude/skills/ and restart Claude. That's all.
Full installation guide →
Detect malicious code, leaked secrets and prompt injection attacks. Translate it to Spanish and get concrete improvements. Security and quality, before you install.