Convert XPM to G3

The XPM (X PixMap) file extension is a format used for storing pixmap images, primarily in the X Window System for Unix-based systems. Developed in the late 1980s, it allows for the storage of images in plain text, making it human-readable and editable. XPM files are mainly utilized for defining icons and graphical elements in software applications. They support transparency and can be easily integrated into programming languages such as C, enhancing the customization and visual appeal of user interfaces. The format's simplicity and flexibility have cemented its role in software development and graphical design.

The G3 file extension refers to the CCITT Group 3 Fax Image, a standardized format developed by the Consultative Committee for International Telegraphy and Telephony (CCITT), now known as ITU-T. This format was created to efficiently compress black-and-white fax documents for transmission over telephone lines. It employs a method called Modified Huffman Coding for data compression, enabling reduced transmission time and bandwidth usage. G3 was widely adopted in the 1980s and 1990s as the primary standard for fax transmissions, ensuring compatibility across different fax machines and systems.