Binary Asset Formats
Assets stored in a binary format are typically only specific to the game they are made for and are not easy to just open right up. let's use Heavy Iron's LightKit Asset (.LKIT) just for an example. It is an asset specific to Heavy Iron Studios, and uses it's own custom format, written just for Heavy Iron's games, in which gives them the "Binary" name, as they aren't a regular file format and are custom. Most of the binary formats used in BFBB, The SpongeBob SquarePants Movie Game, and most other Heavy Iron games have been mostly if not completely figured out.