Microsoft Office PowerPoint Viewer does not open a specific presentation.
Office PowerPoint Viewer 2003 does not support Microsoft PowerPoint 95 or earlier file formats. Only files that are compatible with PowerPoint 97 or later can be viewed by using PowerPoint Viewer 2003.
To view a presentation that is formatted for PowerPoint 95 or earlier in Office PowerPoint Viewer 2003, first open the presentation in PowerPoint 97 or later, and then save it in a PowerPoint 97 or later format.
To view a presentation that is formatted for PowerPoint 95 (but not earlier), you can also use Microsoft PowerPoint Viewer 97. Find links to more information about downloading this viewer, and about saving earlier files in later formats, in the See Also section, which is visible when you are connected to the Internet.