Have a PowerPoint Presentation you need to create or edit? Here's how to open and edit a PowerPoint presentation online for free.

To edit a footer in your PowerPoint slides and include citations or notes, you'll need to access the Header & Footer menu from the Insert tab.

How-To How to edit .pptx PowerPoint files on Mac, iPad or iPhone Collaborating on files can be difficult if you use Keynote and someone else uses Microsoft PowerPoint.