This file is the official documentation for the file formats in gEDA/gaf (Gschem And Friends). The primary file format used in gEDA/gaf is the schematic/symbol format. Files which end with .sch or .sym are schematics or symbol files. Until there is another file type in gEDA/gaf, then this document will only cover the symbol/schematic file format.
This file format document is current as of gEDA/gaf version 20021103.