i cannot open downloaded powerpoint files ?why?

[arkansastechstudentin need of help]

when i try to open downloaded powerpoint files it says" windows cannot open
file because it doesnt know who created the file?'

 

[John Wilson]

Maybe this is too obvious but do you have powerpoint installed?
If not you will need to download a free viewer

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http://www.microsoft.com/downloads/...27-43ab-4f24-90b7-a94784af71a4&displaylang=en

Did that answer the question / help?
_____________________________
John Wilson
Microsoft Certified Office Specialist
http://www.technologytrish.co.uk/ppttipshome.html