I have an excel file. When the file is opened I would like the user to be prompted with the message "The author would like you to open file_abc.xlsm as read-only unless you need to make changes. Open as read-only?"
For the life of me I can't find the box to tick. What's even worse is I did this about two weeks ago from some of my other workbooks. Can someone please tell me where the option is located in Excel 2013?
Thanks!