I am using MS Office 365 ProPlus. Recently, I have had two files convert from .xlsx to .tmp. Both files are housed on a network shared drive. Under normal circumstances, only two people share these files. Recently, a third person has been editing them. This never happened when the original two people shared the files. I understand Excel creates the .tmp file when opening a file, and is supposed to delete when saving/closing the file. Can someone tell me why this would start happening? One of the files is setup with permissions for read only for fellow employees and change for the three who are currently editing it. The other file has no permissions setup. It's open to anyone. I can easily retrieve the files with no problem, but I'm wondering why this would happen and how do I keep it from happening? Any suggestions?
