Excel stops at 1,048,576 rows. Mail-merge and import tools often cap uploads at 1,000 or 10,000 records. A CSV that's too big for the tool you need has to be cut into pieces.
Choose the rows per file. Every piece gets the header row, so each one is a valid CSV by itself. The pieces are numbered and delivered in one ZIP.
How to use the Split CSV File tool
- Choose your CSV file.
- Set the number of rows per file.
- Download the ZIP with the parts.
Popular uses
- Getting under the record limit of an import tool
- Opening a huge export in Excel in sections
- Sending a contact list to a bulk-email service in batches
Tips for the best result
- The tool tells you how many files you will get before you download.
- Rows that contain line breaks inside quotes are kept whole.
Quick facts
| Price | Free |
|---|---|
| Works with | CSV → ZIP |
| Where it runs | In your browser, on your device |
| Account | Not needed |