Open the Convert Excel to CSV / JSON tool in your browser — no install, no sign-up.
Choose your file — it is converted right on your device, never uploaded.
Download the result in seconds.
Supported formats
XLSX, XLS ⇄ CSV, JSON
Why File Frog?
Your files are converted entirely on your device — nothing is uploaded to a
server and there is no sign-up. Convert right here in your browser on any
device, or get the Android app for an ad-free experience that works offline.
File Frog