Decant

XLSX converter

Convert XLSX files to CSV, JSON, TSV and more in your browser.

Drop files here

or paste them in. Whole folders work too.

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

What are XLSX files?

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

XLSX to other formats

Other formats to XLSX

Questions

How do I convert XLSX files?
Choose your XLSX files or drop them on this page, pick a format (CSV, JSON, TSV and ODS), then select Convert and save the results.
Is it safe to convert XLSX files here?
Yes. Decant converts XLSX files in your browser, so they’re never uploaded, stored or logged.
Can I convert many 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.