When to use this
Prepare CSV uploads for shops and ad platforms, or open a CSV that Excel garbles. Output CSVs carry a UTF-8 BOM so accented and non-Latin text displays correctly in Excel.
How it works
- Add an XLSX or CSV.
- The direction is detected automatically.
- Click Convert.
Frequently asked questions
- Excel shows odd characters in my CSV.
- That is an encoding mismatch. Convert to XLSX here and it opens cleanly.
Is my file safe?
Yes. This tool never sends your file to a server. The program runs on your device inside the browser, and the result is created right there. When you close the page, everything is cleared from memory and no record is kept.