The Windows XP operating system does not include PowerPoint.
It can be purchased as a stand alone program or available when
Microsoft Office is purchased and installed.
Please don't yell at us. We can hear you if you type normally, in
mixed case.
A pps file is a PowerPoint presentation. Have you installed
PowerPoint, or a PowerPoint viewer? Assuming that the answer is
no, that's why you can't open it. You can only open files if
you've installed the appropriate software to open then, and a pps
file is only one of the many types of files that you can't open.
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