As well as what vindys and Echo have mentioned.....
Those are what powerpoint can 'open'
It can also 'import/insert' allsorts of graphics and movie formats.
e.g JPG GIF PNG etc
e.g. WMV, MPG, etc
Cheers
TAJ Simmons
Microsoft Powerpoint MVP
http://www.awesomebackgrounds.com
awesome - powerpoint templates,
powerpoint backgrounds, free samples, ppt tutorials...
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