in the page setup in the page Layout tab
The top and bottom of a business letter should be 1" to 1.25" from the top and bottom of the page. When using letterhead, a margin of .5" to 1" below the printed letterhead is sufficient.
The margin
margin
header
Yes, although you can have a header in the top margin and a footer in the bottom margin.
Page URL and date printed.
The bottom line of the page that repeats on every printed page.
footer
Footer
It is called the header at the top of the page and a footer at the bottom of the page
Maybe the number of the page?
the default text is Times New Roman