Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats.
Install
npx skills add davila7/claude-code-templates --skill xlsxnpx skills add davila7/claude-code-templates --skill xlsx -a claude-code -gnpx skills add davila7/claude-code-templates --skill xlsx -a codex -ggemini skills install https://github.com/davila7/claude-code-templates.git --path cli-tool/components/skills/document-processing/xlsxgh skill install davila7/claude-code-templates xlsxgit clone --depth 1 https://github.com/davila7/claude-code-templates /tmp/davila7__claude-code-templates
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/davila7__claude-code-templates/cli-tool/components/skills/document-processing/xlsx ~/.claude/skills/xlsx # Claude Code
cp -R /tmp/davila7__claude-code-templates/cli-tool/components/skills/document-processing/xlsx ~/.agents/skills/xlsx # Codex, Cursor, Gemini CLI, Copilot, OpenCode