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Just follow these steps, and you’ll be able to show all your good videos on powerpoint presentation:

1- download the youtube video with “zillatube”. Get the program from http://www.zillatube.com

2- using zillatube, convert it into mpg video format.

3- final step, a simple step, just insert(using the file menu above the powerpoint program) the mpg video into power point.

Just 3 simple steps, and you can present your powerpoint with videos without online at all.

all the best to your presentation.
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