Convert CSV and Excel XLSX - Adawa.at

Convert CSV and TSV to Excel XLSX or export the first XLSX sheet to CSV in a private processing service.

How to use this tool

  1. Choose a CSV, TSV, or XLSX file.
  2. Review the conversion direction and sheet name when needed.
  3. Convert the file and download the result.

Frequently asked questions

Where is spreadsheet data processed?

Files are parsed and generated in an isolated service on the Adawa.at server and are not sent to an external provider.

Does it preserve Excel formatting?

The converter focuses on values and does not preserve images, charts, or formatting.