File Extension .dup

April 14, 2009

in file extensions

Extension: dup
What is it? Duplicate Backup File
Where’s it from? Many programs create dup files so you will have a spare in case the original gets corrupted.
How do I use it? The program that created the dup file uses it.
Can I safely delete or move it? Yes.
Can it be dangerous? No

–David Hakala