How to Unsync Split Pane in Excel

1. Open the spreadsheet that has the split screens.
2. Click the 'Synchronous Scrolling' button in the 'Window' group on the 'View' tab.
3. Close the split panes by clicking on the 'Close' button in the upper-right corner of the pane. Repeat this step until only one pane remains open.
4. Click the 'Maximize' button in the upper-right corner of the pane.
5. Click the 'Save' button on the 'Quick Launch' toolbar to save the changes.