100 free template available for Google Slides and PowerPoint you can
How To Add A Powerpoint To Another Powerpoint. Open the presentation that you want to add slides to. Click where you want to add your slide.
Click where you want to add your slide. Open the presentation that you want to add slides to.
Click where you want to add your slide. Click where you want to add your slide. Open the presentation that you want to add slides to.