Quick Answer. The formula bar is a feature in Microsoft Excel that enables users to create and view formulas. It is typically labeled with a function symbol (fx), and it is sometimes referred to as the formula box. Continue Reading.
An audio commentary is an additional audio track, usually digital, consisting of a lecture or comments by one or more speakers, that plays in real time with a video. Commentaries can be serious or entertaining in nature, and can add information which otherwise would not be disclosed to audience members.[1]
Narration is the use of a written or spoken commentary to convey a story to an audience. A narrator is a personal character or a non-personal voice that the creator (author) of the story develops to deliver information to the audience, particularly about the plot.