File formats

List of File Types Used by Doom/Doom II

 * .lmp -Doom exectuable demo recording format
 * .wad -Doom level resource file (contains textures, sprites, music, and level layout)

List of File Types Used/Created by Doom Editing Programs

 * .deh -DeHacked file which allows editing of hardcoded aspects of doom
 * .lev -file which can be loaded along with a pwad and renames doom levels
 * .mus -music file format of doom
 * .bex

Doom Utility File Types

 * .bat -executable text file that contains command prompts designed to alter the behavior of the doom executable.