How to allow my employees to make changes of the Excel files on NAS without giving them the permission to delete the files?

racaywt 0 Reputation points

My company uses shared folders on NAS to save our Excel and Word files. There are 2 HDD in the NAS but they have identical data so technically we do not have backup of the files. If one of the staff hostilely delete everything saved in the NAS, it would be irreversible. I tried turning off the permissions of my staff to "Delete" and "Delete subfolders and files" but that would result in the staff not even be able to edit an existing file and save it. I did not know that editing and saving involves "deleting". What I want to do is, allow them to make changes (otherwise they can't work, can they?) but prevent them from deleting files in the folder. Is there a way? How can I protect the files?

A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
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  1. Emi Zhang-MSFT 22,236 Reputation points Microsoft Vendor

    Hi @racaywt,

    For Office application, if you don't provide the delete permission for users, they cannot delete the temporary files, the original file will not be overwritten by the modified content from user.

    In my opinion the delete permission is necessary.

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