You can open an OGMO file with OGMO Editor to open the level editor project. You can also open an OGMO file with text editors to view the JSON data. OGMO files contain JSON data that defines level editor projects. The audio format has restrictions. It must be mono or stereo, 8 or 16 bit. Sample rate must be 8,000 to 48,000 Hz. Sounds require compilation.
OGM is a format for videos, audio, and subtitles. It saves data bandwidth. Its royalty-free nature helps artists. If an OGM file does not open, check the program version. Update it if needed. Double-check the file extension if solutions do not help open the file.