How to remove PowerPoint's presenter notes at once?

Recently, I needed to share my slide to someone. Of course I wanted to remove all the notes, which included something like ... "Hi my name is ... (slow down) ... (voice goes up)."

But my slide had ~200 pages, and I couldn't delete the note from each page. PowerPoint on Windows seems to have such function, but the Mac version didn't seem so.

Then I found this Mac app, which is dedicated to clean PowerPoint presenter notes. The app is built for PowerPoint 2011 Mac, but it perfectly worked for my PowerPoint 16!

I'm happy that there are so many talented developers who are willing to share their code & apps. :)