To do Alt + N Z K on Mac in Excel, download and install Accelerator Keys, then press Option, followed by N, Z, K.
Command: Sparklines
This is how to do Alt + N Z K 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 Z K sparklines inserts tiny charts within cells that show data trends. You can choose line, column, or win/loss sparkline styles.