I didn't know excel allowed you to assign names to cells. Nobody taught me so. Of course I'd find it useful if the UI for that feature was easy to reach.
In programming the UI to assign names is very intuitive and right there in your face. You place the name next to the thing you want to have named. Done.
In Excel it is both, very accessible and not obvious at the same time.
At the top left corner of the sheet, just to the left of the formula bar, there is a textbox that displays the cell Number (eg. A1). Simply click on that and enter a name for that cell.
In programming the UI to assign names is very intuitive and right there in your face. You place the name next to the thing you want to have named. Done.