To do Alt + M Q O on Mac in Excel, download and install Accelerator Keys, then press Option, followed by M, Q, O.
Command: Compatibility Functions Submenu
This is how to do Alt + M Q O on Mac in Excel with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with Excel.
Alt + M Q O opens the Compatibility functions submenu from More Functions. These are older function versions maintained for backward compatibility with earlier Excel versions, including legacy statistical functions that have been replaced by more accurate versions in modern Excel.