Bzip2 File Extension
Bzip2 is extension of Unix-Linux ARchive File. It may be used with Winrar Software.
It is a file compression method that is used with Unix/Linux operating systems. Bzip2 files have quite fast performance. Those can be opened by Winrar or Bzip softwares. You can download free from the internet.
What needed to Open Bzip2 file extensions.
Links about Bzip2 file extension