GLIF files are saved in XML format. They can be opened by plain text editors. Typically GLIF files are found in UFO font files. They store information on each glyph. GLIF files are not usually deleted from UFO files. The files are accessible when programs like FontForge, RoboFont, or Glyphs open UFO files. They are located in the glyphs folder. The GLIF format was developed by The RoboFab developers. Most often different GLIF files are not compatible. You must use different apps to handle them. Our tools for GLIF files are: file opener, converter, viewer and editor. The most used program for GLIF files is RoboFab. RoboFab software detailed info is on the official website. This includes info about supported formats like GLIF. Some programs supporting GLIF format are listed in a table below. People share GLIF files without instructions. This makes it difficult to determine compatibility. We offer help on handling GLIF files. Solving issues with GLIF files is often simple. Install proper software and open.
Glyphs App
FontForge