Descent 3 - 3D action game An ORF file describes one room. A room is a collection of faces defined by any number of 3d vectors. To help conserve memory, faces can share vectors. The ORF file is broken up into chunks which describe a certain aspect of the room like header, vectors, and textures. A chunk is a CHUNK_ID (int, 4 bytes), a size (int, 4bytes), and the corresponding data.
Raw image format for some Olympus digital cameras. Raw images are basically the data as it comes directly from the CCD detector in the camera. Raw files can also contain text information about the picture and conditions in the camera when the picture was taken. Link: Standalone program to work with ORF files. ORF.exe is a much superior tool for working with .ORF files than the ORF import filter.