Notes about the BGM file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The BGM file type is primarily associated with 'Basic4GL' by BasicGl - Tom Mulgrew. Basic4GL is a free BASIC programming language for Win32 platforms with built in OpenGL v1.1 support. Basic4GL is a compiler and virtual machine, using syntax based on traditional BASIC. This is a 3D Object format made especially for use with the Basic4GL compiler environment. It can be used in any program.