A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Unfortunately, the program no longer provides the capability to assign custom keyboard shortcuts. I guess, in their infinite wisdom & sensitivity to the needs of their users, Microsoft decided that if the Windows folks don't have it Mac folks don't need it. Voice your opinion by using the ☺︎ at the right end of the Ribbon. Also, you can cast a VOTE for an existing request or submit a new one at Excel for Mac
Microsoft now suggests using the OS X facility to create keyboard shortcuts. What they failed to consider [or chose to ignore] is that the OS X facility only can be used for commands which explicitly appear in the menu structure of a program. It's useless for others, such as these, which are not in the menus.