Windows users looking for a reliable CSV splitter often end up choosing between writing their own script or hunting through unfamiliar online tools. Neither option is ideal if you just want a simple, repeatable way to divide large CSV files on your own PC.
Turbo Large Data Splitter is built specifically as a Windows desktop application, with an interface designed around the two most common ways people need to split a file: by a fixed row count or by a target file size. It installs in a few minutes and runs entirely offline afterward.

- Download Turbo Large Data Splitter and install it on Windows 10 or 11.
- Open the app and load the CSV file you want to split.
- Choose your split method: rows or file size.
- Enter the value you want per output file.
- Turn on header repetition if needed.
- Click Split to generate the smaller files.
- Purpose-built Windows 10 and 11 desktop application
- Split by row count or file size
- Handles CSV files with tens of millions of rows
- No scripting or command-line knowledge required
- Fully offline processing for complete data privacy
- One-time license with no ongoing fees
Is this CSV splitter compatible with Windows 10?
Yes, Turbo Large Data Splitter runs on both Windows 10 and Windows 11.
Do I need to install any additional software, like Python?
No, the app is a self-contained installer with everything it needs built in.
Can I split more than one CSV file in a session?
Yes, you can load and split additional CSV files one after another without restarting the app.
Ready to split your CSV files with a dedicated Windows app?