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Convert XLSX to CSV

Convert XLSX files to CSV in your browser.

Drop files here

or paste them in. Whole folders work too.

  • Nothing is uploaded
  • Works offline
  • Free and open source

How to convert XLSX to CSV

  1. Choose your XLSX files, or drop them anywhere on this page.

  2. Check that CSV is selected, and change the settings if you need to.

  3. Select Convert, then save your CSV files.

About XLSX and CSV

XLSX

XLSX is Microsoft Excel’s workbook format, with multiple sheets, formatting and formulas.

CSV

CSV stores a table as plain text, one row per line with commas between values. Every spreadsheet and database can open it.

Questions

How do I convert XLSX to CSV?
Choose your XLSX files or drop them on this page, check that CSV is selected, then select Convert and save the result. It works the same on a phone or a computer.
Is it safe to convert XLSX to CSV here?
Yes. The conversion runs in your browser, so your XLSX files are never uploaded, stored or logged.
Can I convert several XLSX files at once?
Yes. Add as many as you like and they convert together. Save each result on its own, or all of them as one ZIP.

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