How do you open up a .bup file?????

Question

Is there a program that can open up these back-up files?

Answer 1

Not enough information.  

Answer 2

.bup is a file extension used to indicate a back-up file created by any number of different programs.  You should be able to open the file in question with the program that created it (otherwise it would be kind of a useless back-up), but there is no way for any of us to tell what program that is without more information.

-Where did you find the file?

-What is it called?

-How big is it?