FileTranslator › CSV to XLSX
Convert CSV to XLSX
Opening a raw CSV in Excel invites trouble: mangled accents, dates rewritten, long numbers turned into scientific notation. A proper XLSX sidesteps all of it.
Drop CSV files here
or
Output is pre-set to XLSX — you can change it per file after adding.
About CSV to XLSX conversion
Your CSV is parsed and written into a real Excel workbook, ready to open with formatting intact. Exports from any system — banking, analytics, shop orders — convert in a click.
How to convert CSV to XLSX
- Drop your CSV files onto the box above, or click Choose files.
- The output format is already set to XLSX — adjust it per file if you need something else.
- Click Convert, then download your XLSX files (or everything as one ZIP).
Free, no account, no watermarks — and because the conversion runs in your browser, your files are never uploaded to a server.
CSV to XLSX — frequently asked questions
How do I convert CSV to XLSX?
Drop your CSV file onto the converter above (or click Choose files), make sure the output format is set to XLSX — it is preselected on this page — then click Convert and download the result.
Is this CSV to XLSX converter free?
Yes. Converting CSV to XLSX on FileTranslator is completely free, with no account, no file limit and no watermarks. The site is supported by ads instead of fees.
Are my CSV files uploaded to a server?
No. The conversion from CSV to XLSX runs entirely in your browser using WebAssembly and JavaScript — your files never leave your device, which makes it safe for private documents and photos.