PowerPoint files, usually ending with the extension.ppt, are created using Microsoft's PowerPoint application which is part of Microsoft's Office software package. This software specializes in the creation of digital presentations.

If you have Microsoft's PowerPoint application (or some compatible software), you can right-click on the link for a PowerPoint file, save the file to disk, and view it with the software. Otherwise, the current versions of Internet Explorer and Netscape Navigator (and possibly other browsers) should have a PowerPoint plugin which will open the file directly in the browser upon following the link.