a four-stringed musical instrument of the violin family, slightly larger than the violin; a tenor or alto violin. 2. a labial organ stop of eight-foot or four-foot pitch, giving tones of a penetrating stringlike quality. Origin of viola1. Italian.
PPT is a file extension for a presentation file format used by Microsoft PowerPoint, the popular presentation software commonly used for office and educational slide shows. All text images, sound and video used in the presentation are contained in the PPT file.
Quite often, you might have received a PowerPoint presentation with a PPS or PPSX extension rather than the normal PPT or PPTX extension - here's more info. PPT is the default file extension for saving presentations in PowerPoint 2003 and earlier versions.