To do Alt + N E on Mac in Excel, download and install Accelerator Keys, then press Option, followed by N and E.
Command: Equation
This is how to do Alt + N E 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 + N E opens the Equation editor to insert mathematical formulas and expressions. The equation tools let you build complex mathematical notation with fractions, radicals, integrals, summations, and other mathematical symbols using a structured format.