Free Online Excel Sheet Splitter
Split a large Excel or CSV file into multiple separate spreadsheets automatically based on unique values in your chosen column. Extract rows by sales territory, departments, or dates in seconds—all executed securely inside your browser.
How Excel Sheet Splitter Works
Extract, organize, and export separate sheets in 3 simple steps.
Upload your .xlsx, .xls, or .csv file. The app reads sheet metrics and column structure locally without data uploads.
Select which column to split by. The engine recommends columns based on unique value densities and displays a visual record distribution.
Configure prefix/suffix filenames, filter unwanted records, preview the file distribution list, and download all files inside a single ZIP archive.
Download Test Datasets
Try out the splitting engine immediately using these prepared mock databases.
Contains order records across Country (USA, Canada, UK, Germany). Perfect for testing splits by Region.
Employee directory with Department and Location fields. Ideal for testing multi-sheet or custom filter splits.
Why use our Excel Splitter?
Organizing bulk report worksheets manually takes hours. Our online tool automates it instantly.
No uploads required. Files are processed within your local browser memory using JavaScript. Perfect for private corporate spreadsheets.
Define prefix, suffix, row count parameters, or custom dynamic tags ({column}_{value}) for your output filenames.
Filter rows before splitting. Exclude blank values, filter numeric ranges, or trim whitespace automatically.
Frequently Asked Questions
Answers to popular questions about client-side Excel splitting.
The splitting engine reads your spreadsheet and groups rows by the unique values in your chosen column. For example, if you choose a "Country" column, the tool creates a separate Excel workbook for USA, Canada, Germany, etc.
No. All processing, parsing, grouping, and ZIP compression happens entirely client-side inside your browser using JavaScript. No files or cell values are ever uploaded to external servers.
There are no strict limits from our software. Since it runs in-browser, it depends on your device memory. The tool comfortably handles files with hundreds of thousands of rows.
You can choose how to handle empty values: you can skip those rows entirely, or group them into a separate spreadsheet file (e.g. "Empty.xlsx" or "Other.xlsx").