CSV to Excel – convert CSV to XLSX online for free
Convert CSV to Excel (XLSX) for free online. Detects the delimiter and accented characters automatically and keeps leading zeros.
CSV to Excel online – free
Opening a CSV in Excel often goes wrong: all data in one column, broken accented letters or lost leading zeros. This tool detects the delimiter (semicolon, comma or tab) and the encoding (UTF-8 or Windows-1250) and saves a real .xlsx file. Leading zeros (e.g. in IDs or phone numbers) stay untouched because they are stored as text.
How to use CSV to Excel
- AddDrag a file into the box or choose it on your computer or phone.
- RunAdjust the options if needed and click “Convert to Excel”.
- DownloadDownload the result. The file is processed in your browser and isn't uploaded.
Frequently asked questions
Why does my CSV show in one column in Excel?
Excel's regional settings may expect a semicolon while the CSV uses a comma, or the other way round. This tool detects the delimiter itself.
Are leading zeros kept?
Yes. Numbers with a leading zero are stored as text, so 0123 stays 0123.