Use this skill any time a .xlsx file is involved -- as input, output, or both. This includes: creating spreadsheets, financial models, dashboards, or trackers; reading, parsing, or extracting data from any .xlsx file; editing, modifying, or updating existing workbooks; working with formulas, charts, pivot tables, or templates; importing CSV/TSV data into Excel format.
Install
npx skills add iOfficeAI/OfficeCLI --skill officecli-xlsxnpx skills add iOfficeAI/OfficeCLI --skill officecli-xlsx -a claude-code -gnpx skills add iOfficeAI/OfficeCLI --skill officecli-xlsx -a codex -ggemini skills install https://github.com/iOfficeAI/OfficeCLI.git --path skills/officecli-xlsxgh skill install iOfficeAI/OfficeCLI officecli-xlsxgit clone --depth 1 https://github.com/iOfficeAI/OfficeCLI /tmp/iOfficeAI__OfficeCLI
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/iOfficeAI__OfficeCLI/skills/officecli-xlsx ~/.claude/skills/officecli-xlsx # Claude Code
cp -R /tmp/iOfficeAI__OfficeCLI/skills/officecli-xlsx ~/.agents/skills/officecli-xlsx # Codex, Cursor, Gemini CLI, Copilot, OpenCode