Click the Review tab.
Then click the Track Changes button, and then click Accept/Reject Changes.
If you want, change tracking, and then click OK to begin reviewing changes.
Review all the changes.
Click Accept to make the selected change to the worksheet.
Click Reject to remove the selected change from the worksheet.
Click Accept All to make all of the changes to the worksheet.
Click Reject All to remove all of the changes to the worksheet.
Click Close.