If you don't want content reviewers to accidentally modify your document, you can make the document read only before sending it for review When you try to open a excel workbook, powerpoint presentation, or word document on your mobile device, you might receive a message stating that the file is locked for editing by another user. Another method is to restrict formatting and editing.
How to Make Read Only in Excel (Workbook)
If you don't want content reviewers to accidentally change a word document or an excel spreadsheet, you can use formatting and editing restrictions
(you'll see that that option now reads anyone with the link can view.)
