Because they are essentially simple , you don't need specialized software to read them: How do I use a .DIZ file? - Super User
: To ensure compatibility across different BBS software, a standard FILE_ID.DIZ was strictly limited to 10 lines of text , with each line being no more than 45 characters wide.
: While largely replaced by more modern README files, the format remains a staple in the "warez scene" for documenting cracked software releases, often including the group name and release date. How to Use and View Them