I'm working with macOS Big Sur 11.3.1 using Excel for Mac version 16.49. I opened "View, Headers and Footers" to change a page number on the document, and now I cannot get out of Headers & Footers. It shows in the dropdown box under "view" that I am not in Headers & Footers, but actually I'm locked into that view. I've tried pressing ESC, closing and reopening the document, asking for help on Excel help--about everything I could think of, but I've been locked out for 12 hours. I do not want to lose the 13 pages of data I've typed into the document. Please offer help.