To change the orientation of the whole document, select Layout > Orientation. Choose Portrait or Landscape.
In a Microsoft Word document, place your cursor at the start of the page that you want to change to landscape. Select Layout > Breaks > Next Page to place a section break where you had your cursor. Make sure your cursor is still at the start of that page, and go to the Orientation option.
Frequently Asked Questions
How do I change the orientation of one page in Word 2021?
0:382:02How To Change Orientation of One Page in Word (2021) - YouTubeYouTube