Basics of the WAD format

The WAD format was originally used in DOOM (obviously) and it acts slightly similar to a zip file; it can contain many files as a single .WAD document, and there is a very low compression rate on these files inside the .WAD file, called lumps. However, there are several features that set a .WAD apart from a normal compressed file. The most notable among these is that the lump names can only be eight characters long, and when importing lumps into a .WAD, the filename extension is lost (this is because it is not needed- DOOM is programmed to "know" the names of special lumps it needs to operate properly).

-Edited by Darkhaven3