Because they are essentially simple , you don't need specialized software to read them: How do I use a .DIZ file? - Super User
: The format was championed by the Association of Shareware Professionals (ASP) to ensure software authors could provide their own descriptions, rather than relying on whatever text an uploader might manually type. Download FILE DIZ
: 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. Because they are essentially simple , you don't