DIZ files are associated with archives with ZIP format. The files are simple, small text files that contain a description of some ZIP archive. This can be data about the program in which the archive was made or what files are in it. Such a file is supported by any text editor.

The first part of the file name of this format is the same as the described archive file, followed by the DIZ extension. For example, for TEST.ZIP, the description file would be TEST.DIZ .