What is a graphics file format?

Step-by-step solution:

• A graphics file format is a way to represent graphical data on an external storage device.
• These formats are categorized into raster and vector types.
• Within these categories, universal graphics formats and proprietary formats for specific applications are distinguished.

Answer: A graphics file format is a method for storing and representing graphical data on a storage medium, categorized into raster and vector types, with further distinctions between universal and proprietary formats.