How to Turn Off Sharing in Excel 2007

1. Launch Microsoft Excel and locate the 'Review' tab on the ribbon located on the top of the screen.
2. Click the 'Share Workbook' tool located in the 'Changes' group to launch the 'Share Workbook' dialog box. You should see a check mark next to the 'Allow Changes' check box.
3. Click the 'Allow Changes' check box to clear the check mark. Click 'OK' to save your changes and disable sharing.