A b2 file extension is related to Progress database file format.
Software that open b2 file
B2 file extension - Progress database
What is b2 file? How to open b2 files?
File type specification:
The b2 file extension is associated with software products developed by Progress, like Progress ObjectStore, OpenEdge, Corticon, Apama etc.
The b2 file stores database with data used by these applications.
List of recommended software applications associated to the .b2 file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open b2 file, edit b2 file, convert b2 file, view b2 file, play b2 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with b2 file - Progress database
Click on the software link for more information about Progress ObjectStore. Progress ObjectStore uses b2 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
Microsoft Windows:
Progress ObjectStore (obsolete/discontinued)