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CSV to Excel & Excel to CSV Converter

Convert CSV to Excel (XLSX) and Excel to CSV, TSV or JSON in your browser — keeps accents intact, supports semicolon CSV for European Excel, and exports every sheet at once.

How to use

  1. 1Drop a CSV, Excel, ODS or JSON file (or paste data).
  2. 2Pick the output format and download.

Frequently asked questions

Why do accents look wrong when I open a CSV in Excel?

Excel needs a UTF-8 marker in the file. Our CSV downloads include it, so accents and symbols display correctly.

What's semicolon CSV for?

In many European locales Excel expects semicolons between columns because the comma is the decimal separator.

Can I convert all sheets of a workbook?

Yes — choose CSV or TSV and download all sheets as a ZIP.