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CSV to Excel

Turn a CSV into a real .xlsx workbook.

Drop your CSV file

Parsed on your device · nothing is uploaded

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Add a file and its contents are parsed on your device — no upload, no account.

Private by design. This tool runs entirely in your browser. Your file is processed on your own device and is not uploaded by DO101.

About the CSV to Excel

Parses CSV — handling quoted fields containing commas and newlines — and writes a genuine Excel workbook, so the file opens cleanly without an import wizard.

How to use it

  1. 1Add your CSV file.
  2. 2Check the preview.
  3. 3Download the .xlsx workbook.

What you get

  • Handles quoted fields with commas and newlines
  • Produces a genuine .xlsx, not a renamed CSV
  • Preview before downloading
  • No account or upload
  • Runs on your device

Frequently asked questions

Why not just rename the file?

Renaming a .csv to .xlsx produces a file Excel refuses to open. This writes a real workbook in the correct format.

Will leading zeros survive?

Values are written as text where they are not clearly numeric, which preserves things like 007 and phone numbers better than a plain CSV import.

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