Review->Changes-> Protect and Share Protect and Share If you are editing this workbook in a group or department, you can Protect and Share your workbook. Here are the steps.   5. Try it: Protect and Share Go to Review->Changes. Select Protect and Share. What Do You See? When you Protect and Share a Workbook, this option turns on the Tracking and prevents folks from turning the Tracking off.   What Else Do You See? You can enter a Password as well. The Password is optional.   When you click OK this workbook will be Shared. Click OK and keep going...