Open a terminal window:
- To open Terminal, go to Applications > Utilities > Terminal
- Go to the folder where the file is located, in my case Desktop/
- Unzip the file (my filename is presentation.pptx)
- unzip presentation.pptx
If that doesn’t work, rename the presentation.pptx to presentation.zip and try the above procedure, of course with the correct file name!
Now you should see 3 folders in finder (docProps, _rels and ppt) and an additional file (.xml). If you go in to the folder “ppt” you will find a folder “media”. That folder will contain all media files, which includes pictures/photos/soundbites and your videos!