How to Open a PPT File Without Powerpoint. Microsoft PowerPoint is on over a billion computers worldwide, according to Robert Gaskins, one of the program's developers.

Launch your open-source productivity suite and open the Presentation option, also known as Impress. Open the ODP file you wish to convert to a PPT.

Extract media files including pictures, videos, and audio from PowerPoint Presentations by just renaming the file extension.

Designed for use with Office 2000, XP, and 2003, the downloadable add-on allows you to open, edit, and save the newer file formats, seamlessly converting the files on the fly and in the background.