1. Click on the cog in the lower right-hand corner of the screen to open.Click on the Settings cog
  2. Click on the PowerPoint panel on the left.
    Click on PowerPoint
  3. Scroll down to the very bottom of the settings, and uncheck Include PowerPoint Presentation.
    Click Include PowerPoint Presentation
  4. Click Close.

Your PowerPoint files will no longer be embedded in your session files.