Split Excel Files By Column
Split one spreadsheet into multiple files — one per unique value in a column.
When to split Excel files
How to split Excel files
Drop your file
Select a .xlsx or .csv file to split
Pick the split column
Choose which column determines the groups
Download results
Get one file per unique value as a ZIP
Drop your file
Select a .xlsx or .csv file to split
Pick the split column
Choose which column determines the groups
Download results
Get one file per unique value as a ZIP
Your files never leave your browser
Your files never touch our servers
Excel Splitter runs entirely in your browser. There are no servers receiving your files — we literally cannot see what you split. Close the tab and everything is gone.
Frequently asked questions
Are my Excel files uploaded to a server?+
No. Everything runs in your browser. Your files never leave your device and are never sent to any server.
How many files can it split into?+
As many as there are unique values in your chosen column — one output file per value.
Does it work with CSV files?+
Yes, it supports both .xlsx and .csv files.
Can I split by multiple columns?+
The tool splits by one column at a time. For multi-level splits, run it again on the output files.
Is there a file size limit?+
No strict limit — processing happens in your browser so performance depends on your device memory.
Is Excel Splitter free?+
Yes, free for 5 uses per month with no signup. Upgrade to Pro for unlimited uses at €10/month.
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