.pps file extension
A .pps file is a slide show. They are similiar to .ppt files but they open as a slide show if you double-klick them. They later got replaced by .ppsx files.
A speech that is given without any preparation, notes, or cards, is called an impromptu speech. It is often delivered at private events (e.g., weddings or birthdays) or for training presentation skills.
Animations in PowerPoint
Animations in PowerPoint are visual effects that are applied to different items like graphics, title or bullet points, instead of the slides. There are many different animations like: Appear, Fade, Fly in.
With Virtual Reality people can practice situations and important processes in a virtual room by putting on special digital glasses. They can influence what happens themselves.