Answer:
A medium is the way information is delivered, while a format is the way information is organized.
Step-by-step explanation:
Medium in a literal sense means something in a middle, a way through which something is done. In the communication process, the medium is the channel through which the message is transferred – a middle factor that is used. It can be, for example, some element of publication, media file, the speech, the disc on which something is stored, etc.
Formating is the organization of the information and the arrangement of it. In the communication process, formating would be the composition, structure, and system in which the message is shaped so it is transferred. It can be, for example, the appearance of the presentation or the organization of the written text.