free programs to open any file extension

.PPS File Extension

Microsoft PowerPoint Show

Microsoft PowerPoint is a presentation tool included with Microsoft Office. PowerPoint allows you to make interactive multimedia slideshows to present information. When you open a PowerPoint Presentation (.ppt, .pptx), the PowerPoint software is launched, but the presentation doesn't start automatically. PowerPoint Shows on the other hand start immediately in full screen mode to provide a more polished and professional experience.

Free programs to use .PPS files:

Apache OpenOffice can open, edit, create and print .PPS files
PowerPoint Viewer 2007 can open and play .PPS files
XnView can open and print .PPS files
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