CSV to XLSX Converter

Convert CSV to XLSX online, for free.

Or drop files here. Max file size 1GB. Sign Up for more

How to Convert CSV to XLSX?

  1. Click the “Choose Files” button to select your CSV files.
  2. Click the “Convert to XLSX” button to start the conversion.
  3. When the status change to “Done” click the “Download XLSX” button

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our CSV to XLSX Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 2 hours.

Convert Your CSV files to other formats

FreeConvert.com can convert your CSV files to these other formats:

Convert other files to XLSX format

FreeConvert.com can convert your other files to XLSX format: