Produce a .xlsx file on disk (headless) instead of driving a live Excel workbook — for managed-agent sessions with no open Office app.
Install
npx skills add anthropics/financial-services --skill xlsx-authornpx skills add anthropics/financial-services --skill xlsx-author -a claude-code -gnpx skills add anthropics/financial-services --skill xlsx-author -a codex -ggemini skills install https://github.com/anthropics/financial-services.git --path plugins/agent-plugins/pitch-agent/skills/xlsx-authorgh skill install anthropics/financial-services xlsx-authorgit clone --depth 1 https://github.com/anthropics/financial-services /tmp/anthropics__financial-services
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/anthropics__financial-services/plugins/agent-plugins/pitch-agent/skills/xlsx-author ~/.claude/skills/xlsx-author # Claude Code
cp -R /tmp/anthropics__financial-services/plugins/agent-plugins/pitch-agent/skills/xlsx-author ~/.agents/skills/xlsx-author # Codex, Cursor, Gemini CLI, Copilot, OpenCode