How to Share Password Protect Track Changes in Excel

Password Protection for Specific Cells
1. Determine the level of protection needed for your spreadsheet. If there are specific cells you do not want changed but others that can be, you can just lock cells. If the spreadsheet needs to be fully locked, or you want to prevent users from accessing the actual file, then file-level protection is appropriate.
2. Click 'Home' on the ribbon after opening a file in Excel.
3. Navigate to the Cells section, click 'format,' and then click 'Lock Cell.'
Password Protection for Workbooks
4. On the ribbon click 'Review.'
5. Navigate to the changes group and click 'Protect Workbook.' This will bring up a pop-up window.
6. Select 'Structure' or 'Windows' from the pop-up window. If you lock the structure, users will not be able to reorder worksheets. If you lock windows, users will not be able to change worksheet window sizes.
7. Choose and write down a password to lock the workbook. This is optional, but enhances the security of your worksheet.
Tracking Changes
8. On the ribbon click 'Review.'
9. Navigate to the changes group and click on 'Share Workbook.' This will bring up a pop-up window.
10. Select the check box next to 'allow changes by more than one user at the same time.' Then click on the 'Advanced' tab and type in the number of days you want Excel to keep the change history. Click 'OK.' Note that Excel defaults to 30 days of change history. This is sufficient for most users.
11. Navigate to the changes group and click on 'Track Changes.' Then select 'Highlight Changes.' This will highlight any changes made to a cell so that you will be able to review it later.