What can be done to ensure that unauthorized changes are not made to a workbook?

What will be an ideal response?

There are several things that can be done to ensure that unauthorized changes are not made to a workbook. Using the Protect Sheet feature on the REVIEW tab is one step. However you must be sure that you do not protect the sheet to the point a dashboard's form controls or slicers are inoperable. VBA can also be used to secure a workbook by making certain worksheets containing raw data or analysis are hidden and cannot be viewed in the Options dialog boxof Excel. Also, protecting the VBA code with a password is critical for protecting any code from unauthorized changes.