A b!k file extension is related to the Microsoft Flight Simulator. A b!k file contains scenery data.
Software that open b!k file
B!K file extension - Microsoft Flight Simulator scenery data
What is b!k file? How to open b!k files?
File type specification:
The b!k file extension is associated with Microsoft Flight Simulator, a civil flight simulation video game for Microsoft Windows operating system, developed by Microsoft Studios.
The b!k file contains scenery data.
The default software associated to open b!k file:
Microsoft Flight Simulator 2004 
(obsolete software)
Company or developer:
Microsoft Studios
Microsoft Flight Simulator 2004 is civil flight simulation computer game. This part of Flight Simulator allows users to control historic aircrafts, such as Charles Lindbergh’s Ryan NYP Spirit of St. Louis, the Douglas DC-3 and the world’s first successful powered aircraft, the Wright Flyer.
List of recommended software applications associated to the .b!k 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 b!k file, edit b!k file, convert b!k file, view b!k file, play b!k file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with b!k file - Microsoft Flight Simulator scenery data
Click on the software link for more information about Microsoft Flight Simulator 2004. Microsoft Flight Simulator 2004 uses b!k 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:
Microsoft Flight Simulator 2004 (obsolete/discontinued)
