CZIP is the extension given to files related to the compressed archive software called ZipGenius. CZIP files are used by the program to store archives created using the CZIP encryption algorithm. Files in this format are protected against unauthorized access. They can only be opened by users who know the password. The program also allows you to create self-extracting archives of this type with the extension EXE.

ZipGenius is free software developed by Matteo Riso. Works in systems from the Windows family.