Microsoft PowerPoint is a Powerful Microsoft Office tool for making Business Presentations & School, Colleges Presentations, Videos, Images etc.
For more detail visit www.office.com/setup
Check Some more Uses of Microsoft PowerPoint here.
How to Change Templates in Microsoft PowerPoint?
Open the presentation for which you want to change the template.
Go to the Navigation bar to the Design tab
Click to expand the Themes options.
Select one of the available theme templates.
You can also browse to a saved PowerPoint template on your Personal Computer.
All the slides will be changed with the new template.
Save your Presentation.
For more details, visit: office.com/setup.