You can start a PowerPoint presentation.

Here is a list of features of this app that will tell what you can do from your android device to control PowerPoint. It is also only compatible with Windows Phone OS 8 or Android phone 4.0, Ice Cream Sandwich. You must have Microsoft Office (MO) 2013 to use this app as it is not compatible with earlier versions. With this app, there is no fear of standing in one place as you can move freely during a presentation. It will make your phone a remote that will control your PowerPoint presentation.

If you want to control Powerpoint from an Android device, Microsoft's Office Remote is the best app.