Alibre has the ability to do backups of OPEN FILES in the Options. I really hope you didn't have something open for 5 days without saving it though.
If you're talking about drive, software, or human failures causing SAVED FILES to be lost then I'd suggest looking at existing incremental backup software.
An Alibre Script could be made for such a thing - however it gets very complicated very quickly and would need to be ran each time you use the file.
An AutoHotkey script could be made for such a thing and run in the background - however it gets very complicated very quickly as well.