All PowerPoint files appearing as unrecognizable format in folders

[pasdetrois]

My PowerPoint files are appearing in my Windows folders as a file
format I don't recognize, and I cannot click on the icon to open the
file. If I try I get a message that the system does not recognize the
file format. But I can open up the PP application and open the PP file
from inside the application.

I had the same problem with all my Word files and someone told me to
re-register Word, which worked. Can I do the same thing with PP? What
is the command?

Thanks.

 

[Guest]

Try this first:

RIGHT click one of the icons that should be ppt.
choose properties and make sure that "open with" is powerpoint.

 

[Steve Rindsberg]

My PowerPoint files are appearing in my Windows folders as a file
format I don't recognize, and I cannot click on the icon to open the
file. If I try I get a message that the system does not recognize the
file format. But I can open up the PP application and open the PP file
from inside the application.

I had the same problem with all my Word files and someone told me to
re-register Word, which worked. Can I do the same thing with PP? What
is the command?

Yes, you can.

Changing a File Association, Repairing broken File Associations
http://www.rdpslides.com/pptfaq/FAQ00355.htm

Simplest thing to do is run Help, Detect and Repair