CSV to Excel
Turn a CSV into a real .xlsx workbook — free, in your browser
100% private — Files are converted right in your browser and never uploaded to any server.
Comment ça marche
- 1
Drop in your CSV file.
- 2
Choose the delimiter your CSV actually uses.
- 3
Click Convert and download a ready-to-open .xlsx file.
Pourquoi nous choisir
Confidentiel par conception
Votre saisie est traitée en toute sécurité et jamais vendue. Les outils côté client ne quittent jamais votre navigateur.
Instantané et gratuit
Sans installation ni attente. Des résultats en quelques secondes, dans votre navigateur, sur tout appareil.
Gratuit pour toujours
Sans inscription, sans filigrane, sans limite. Tous les outils côté client sont libres d’utilisation.
Questions fréquentes
Will quoted fields with commas inside them work?⌄
Yes — the parser understands quoted fields (e.g. "Smith, John") and doesn't split on a delimiter that's inside quotes.
What if my CSV uses semicolons instead of commas?⌄
Pick "Semicolon" from the delimiter dropdown before converting — common in several European locales' Excel exports.
Is my file uploaded?⌄
No — parsing and the .xlsx file itself are both built entirely in your browser. Your CSV never leaves your device.
Does it preserve number/date formatting?⌄
Values are written as plain text/numbers; special formatting (currency, dates) isn't inferred — reapply formatting in Excel if you need it.