It is the 'backstage' in which you can <span>save, select a template, change document properties, and close or exit excel</span>
The Function of a header is that it makes your TEXT LOOK BIGGER
Answer: 8:58.5204 o'clock a.m
:)
Answer: Filler content
Explanation: I think what the question is getting at is using filler content. This includes filler images and sample text. Once the website is all set up, the filler content is replaced with the actual content.