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How to make a powerpoint presentation that includes audio and video files 
Open powerpoint by clicking on start =] applications (or all programs) =] microsoft office =] microsoft powerpoint. 
Create your basic powerpoint presentation. 
Click on insert =] movies and sounds =] movie from file (or sound from file) to add a video or audio file to your presentation.
Locate the file you want to add. Remember where this file is located (the file path); you will need it later! Select mp3 or wav format from the files of type drop down box.