Converter//API

Convert

Convert CSV to XLSX

Spreadsheet-friendly tables that open anywhere. Excel workbooks.

  • Free to use — no account or signup required.
  • Your file is deleted the moment the conversion finishes.
  • Handles large files — up to 1 GB per conversion.
  • Prefer code? The same conversion is one API call away.

Related conversions

CSV → JSONCSV → NDJSONCSV → ParquetCSV → PDFCSV → SQLCSV → TSV
io bay · CSV → XLSX
Input · CSV

Idle

Questions

faq

How do I convert CSV to XLSX?

Upload or paste your CSV file, press Convert, and download the XLSX result. It's free and no account is required.

Is my file kept after conversion?

No. Your uploaded file is deleted the moment the conversion finishes, and the converted output expires shortly after.

Can I run this conversion over an API?

Yes. The same CSV to XLSX conversion is available as a REST API.