Posted 25 November 2007 - 11:50 PM
I created several .ppt presentations, and had no problem opening, editing, etc.
Now when I try to view some of the files with Viewer 2003 and/or Viewer 2007, I get an error message telling me they are not a .ppt files. I get the same message with some of my .pps files. When I open the "properties" box, it shows the files a .ppt/.pps files. The only thing I have done with these files is change the names from .ppt to .pps and back, and burned some of the files to CD-R/RW discs.
Can anyone suggest what the trouble may be, and how to correct it?