157 · File Converters

CSV to Excel Converter

Paste CSV or open a file, check the preview and download an .xlsx spreadsheet.

or paste CSV below Files stay on your device

How to use the csv to excel converter

  1. Paste CSV data or open a .csv file.
  2. Check the preview and the options.
  3. Select Download .xlsx.

Why not just open the CSV in Excel?

Excel often mangles CSV files: it drops leading zeros from codes like 00123, turns long IDs into scientific notation and misreads accents. Converting to .xlsx first keeps values like these as text, exactly as written.

Examples

name,score Ada,98

Sheet with header “name | score”, 98 as a number

zip 00501

00501 kept as text

Questions

Does it work with semicolon-separated files?

Yes. Semicolons, tabs and pipes are detected automatically, or you can choose one.

Are my files uploaded?

No. The files are processed by your browser on your own device and are never sent to a server.