File formats

List of file types used by Doom/Doom II

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

List of file types used/created by Doom editing programs

 * .deh &mdash; DeHacked file which allows editing of hardcoded aspects of Doom
 * .bex &mdash; Enhanced DeHackEd-type file used by Boom and other source ports
 * .lev &mdash; File which can be loaded along with a PWAD and renames Doom levels
 * .mus &mdash; Music file format of Doom

Doom utility file types

 * .bat &mdash; Executable batch file that contains multiple DOS commands, and can be used to present a menu and run specific programs or utilities
 * .exe &mdash; An executable program, such as SETUP.EXE or DOOM.EXE itself