This comment will quite possibly be of no help because you probably already know the answer to this at your particular environment/company, but, I'll throw this in just on the slight chance it helps. Not even sure if your environment is a corporate one, but:
Do you work at a company that has "previous versions" turned on for network folder backups? Right-click on the folder in question and go to Properties, see if a tab is Previous Versions ...
Some places I've worked have had this turned on, which is very helpful - and vastly preferable to going through the "I.T. Request" for file restores.