To do Alt + N W on Mac in Excel, download and install Accelerator Keys, then press Option, followed by N and W.
Command: WordArt
This is how to do Alt + N W 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 W opens the WordArt gallery to insert decorative text with special effects. WordArt allows you to create stylized text with shadows, reflections, 3D effects, and gradient fills for eye-catching headings and labels.