I have a folder which is shared with multiple people. Those people access an Excel file within that folder and save their changes. There is a subfolder where a backup copy is made every time someone makes a change. I have code in the spreadsheet which automatically makes this backup copy. I therefore want the subfolder to be accessible so that the backup copies can be saved, but I do not want the users to be able to delete or edit files in the backup folder. Is this possible?