A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

PowerPoint supports a number of common audio and video formats. We’ll go through the details and show you how to incorporate audio and video files into your presentation slides. The current versions ...

Saving many graphic files for reuse is easy if you know these two tricks. Finding a Word document or PowerPoint presentation with graphics that you can reuse is a bit like finding buried treasure.