Here is someone who just upgraded to Excel 2021 on a Mac, and when they try to select an entire row or entire column, there is nothing on the screen to indicate the selection. This may be specific to Excel 2021 for Mac, it may even be a corruption on the machine. I dunno, but I don't have a Mac.

Any takers?

https://www.excelforum.com/excel-gen...1-for-mac.html