119 Powerpoint | How to use slides from another show?

Go under Home tab into Slides section. Click on “New Slide” and
choose Reuse Slides from the down appearing menu. On the right side
of the screen appears a new menu. Click on “Browse” and select
whether you want to browse slide library or files. Since we want to
use slides from another show, we’ll browse the files. Click on the
correct file and press on “Open”. Into the same right side menu a
selection of slides used in the show appears. Click on the
appropriate slide and notice how the slide appears into your
current show. - Office ToDo