A file to store the generated presentations and Microsoft PowerPoint slide shows with the ability to edit them. It was first introduced to store the data in PowerPoint 97 Editor. Stores a set of individual slides with text, graphics, video, and audio information. The file contains information on visual effects inside the slides.
PBM is a Portable image in black and white. Can be opened with programs: Adobe Photoshop CS, ACD Systems Canvas 15, ACD Systems ACDSee 17, Newera Graphics Converter Pro, Corel PaintShop Pro X6. File contains 1 bit per pixel. PBM is a kind of file format PPM. And can be readable or binary.