These are the internal file extensions used by the ZXodus][Engine.
.atr: LZ77 compressed attribute map for 8x2 mode .bmp: LZ77 compressed bitmap for 8x2 mode. .ctile: ColorTILE format tile set. .dng: LZ77 compressed dungeon map. .enc: LZ77 compressed encounter map. .img: LZ77 compressed 8x8 mode. .map: World map. .fnt: Font set. .m: LZ77 compressed P3X music file. .raw: Byte-order bitmap data. .sfx: Sound effects file. .twn: LZ77 compressed town map. .txt: Digraph compressed strings, terminated with a zero.