How to use this office tool
- Select the source file and choose the worksheet when applicable.
- Review the row and preview settings for this task.
- Run the tool, inspect the bounded preview, then download the newly created result.
#199 · Merge Split & Organize Tool
Split CSV by Row Count
Split a large CSV into smaller, consistently headed CSV files and download all parts in one ZIP archive.
Office File Tool
Local browser processingrow
rows
Ad space
What this tool does
Parses the CSV, repeats the header in each part, splits data rows by the chosen count, and packages newly generated CSV files in ZIP.
Parses the CSV, repeats the header in each part, splits data rows by the chosen count, and packages newly generated CSV files in ZIP.
The original file is never overwritten. Download and review the new result separately.
Supported formats
Supported inputs and output limits depend on this specific browser tool. Password-protected or damaged workbooks are not supported.
| Input | Output |
|---|---|
| XLSX, XLS, CSV, or TSV as described above | A newly generated XLSX, CSV, ZIP, or HTML file |
Tips for better results
- Keep an untouched copy of the source workbook.
- Check identifiers, dates, and formula cells in the preview.
- For very large files, test a smaller copy before processing the full dataset.
FAQ
Does split csv by row count upload my workbook?
No. Processing happens in your browser, and the selected file is not sent to Calloffice.
How does split csv by row count handle formulas and formatting?
The tool preserves only the elements described on this page; review the downloaded result before replacing a source file.
What is the browser size limit for split csv by row count?
Browser memory varies. This page applies a file or cell limit and stops with an error instead of attempting an unsafe oversized operation.
Does split csv by row count preserve leading zeros?
Text cells such as IDs and postal codes are kept as text where the source parser identifies them that way. Always check a preview before download.
Does split csv by row count overwrite the original file?
No. The tool creates a separate download and does not overwrite the original file.
Related office tools
Processing notes
| Privacy | Local browser processing |
|---|---|
| Preview | Bounded rows and columns |
| Source | Never overwritten |
Browse more office tools
Office tool hubsSpreadsheet ConversionConvert Excel, CSV, JSON, HTML, and other table formats.View all
Spreadsheet CleanupRemove duplicates, blanks, extra spaces, and inconsistent values.View all
Merge Split & OrganizeCombine, divide, extract, and arrange workbooks and sheets.View all
CSV & Delimited FilesView, edit, clean, validate, and convert delimited data files.View all