Formats
Pattern
INT·Jun 26

Agent XLSX Artifact

Download-first Excel artifact pattern. The agent streams CSV through a tool call, renders a spreadsheet preview, and exports a real .xlsx file with SheetJS.

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Agent XLSX Artifact preview

Problems Solved

  • Generate downloadable Excel workbooks from agent output
  • Preview structured tabular output before download
  • Keep binary export client-side from a streamed source format

Use Cases

  • Excel report generation
  • Budget and forecast spreadsheets
  • Pipeline trackers and data exports

AI SDK APIs

streamTextcreateUIMessageStreamgatewaytooluseChat

Tags

aiexcelxlsxspreadsheetoffice-docsstreamingai-sdkartifacts

Requirements

Node.js
24+
Memory
256MB
Other
  • Vercel AI Gateway API key

Environment Variables

External Services

openaiupstash

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End of Pattern