What is a G3 file?
Created by CCITT, the G3 (Group 3 Facsimile) is a compressed fax image used for digital data transmission. It supports 1-bit per pixel and stores data in raw form, i.e. without a header.
How to Open G3 Files
How to Make G3 Files
Exact steps for creating G3 files will vary by program and operating system. Download one of the above listed programs and you should be able to follow typical procedure for opening files or creating files from the File menu. Typically you will select File > Open or File > New and continue through the prompts. Some programs may follow a different procedure for either creation or opening of files.