PPS is an extension given to files created by the popular Microsoft Power Point presentation program. PPS files contain a multimedia presentation. It is a document consisting of a certain number of slides which are displayed one after the other during a presentation. Slides most often contain properly formatted text, tables, charts and graphic materials. They can also be enhanced with effects and audio tracks.

PPS is a format that allows you to play your presentation without opening the PowerPoint application. Newer versions of the program use the OpenXML format and give the files the PPSX extension.