how do you export NAV objects for Extensions

I am trying to create my first NAV Extension, watching the video and the narrator says to "...use the Export NAV Application object"

He is discussing the list ob objects in text format in the OriginalObjects folder.

Exactly how do you do the export?

It sounds like a Powershell cmdlet but I have drawn a blank there.


NAV2017 installaed on local machine