To do Alt + h f g on Mac in Excel, download and install Accelerator Keys, then press Option, followed by h, f, and g.
Command: Increase Font Size
This is how to do Alt + h f g 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 + h f g activates the Increase Font Size command in Excel, providing quick access to this feature from the ribbon.