Convert CSV to Excel via API

Generate XLSX spreadsheets from CSV data for users who need Excel-compatible downloads. Add an "Export to Excel" button to your app with one API call.

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1 Credit per request

XLSX Output format

10 MB Max file size

CSV in, Excel out

Terminal

$ curl -X POST "https://qkconvert.dev/api/v1/data/csv-to-xlsx" \
  -H "Authorization: Bearer sk_live_..." \
  -F "file=@report.csv" \
  -o report.xlsx

# 200 OK - 45ms - Excel file with headers and typed columns

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