A PPT file is an editable slide show created with Microsoft PowerPoint often used for presentations or slideshows. It may include formatted text, bullet points, images, movies, sound effects, and music. PPT files are commonly built from one of many templates included with the PowerPoint software, but may also be created from scratch.
The PPT file was introduced in 1987 with the release of PowerPoint. It was saved in a binary file format and was the primary file type used to save PowerPoint presentations until it was replaced in PowerPoint 2007 with the .PPTX file extension, which is saved in the OpenXML format. Although the PPT file was replaced by the PPTX file it is still supported by PowerPoint.