A document format is

A document file format is a text or binary file format for storing documents on a storage media, especially for use by computers. There currently exist a multitude of incompatible document file formats.

Answer: The correct answer is : A format is a set of technical characteristics and presentation of a document or text, either real or virtual. The format is the distinction of storage and file mode. There are different types of format depending on the file content on the computer, for example: a. doc format is used for texts, a. ppt format is used for a slide show, a. MP3 format is used for audio or music.