if your pc opens the bng file, but it's the wrong application, you'll need to change your windows registry file association settings. in other words, windows is associating bng file extensions with the wrong software program.
Repeat this setence, but with the correct capitalization.
If your PC opens the BNG file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating BNG file extensions with the wrong software program.