Split Excel Files Online

How does the Excel file splitter decide where to cut?

It divides rows evenly into chunks of the size you specify. If the file does not divide evenly, the last chunk contains the remaining rows.

Do the split Excel files include column headers?

Yes. Every output file gets the same column headers as the original, so each chunk is a valid standalone file.

What format are the output files when I split a Excel file?

The output format matches the input — splitting a Excel file produces multiple Excel files, one per chunk.

Is my data private?

Yes — completely. Your file is never uploaded to any server. Everything runs locally in your browser using WebAssembly — processing happens entirely inside your tab. Once you close the tab, nothing is retained.

What is the maximum file size?

The free limit is 50 MB. For larger files, performance depends on your device's available memory — most modern machines handle 500 MB to 1 GB comfortably.