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Excel

CSV to Excel

Turn a CSV or TSV into a real .xlsx workbook.

Files stay on this device
  1. 1Upload
  2. 2Options
  3. 3Process
  4. 4Download

Drop a file here, or browse.

CSV / TSV · processed in your browser

CSV to Excel builds a real .xlsx workbook from CSV or TSV on this device. The file stays on this device. It is not a picture of a spreadsheet.

This tool is free to use.

Files stay on this device.

Convert CSV to Excel

  1. Upload one CSV or TSV.
  2. Process locally.
  3. Download the XLSX and open it in a spreadsheet app.

CSV to Excel FAQs

Does the file leave this device?

No. The file stays on this device.

Is the workbook real?

Yes. You get an .xlsx with cells, not a PDF or an image.

How is this different from Excel to PDF?

This page stays local and starts from CSV. Excel to PDF uploads a workbook and prints it.

Page guide updated 2026-09-26