VOX

In the scenario you describe, the person performing the restore specified to append a .nbu suffix to the restored files.  NetBackup would not do that automatically.

Interesting.  I did a Google search for "file suffix .nbu" and got the following response: I can confirm, though, that these are not related to NetBackup.

These are not NetBackup related file even though they bear the NBU acronym.  Doing a quick Internet search, these are associated with the Nokia PC Suite synchronization software.  These appear to be backups of someone's Nokia phone.