While converting old PowerPoint presentations to a new file seems complicated to most people, it is quite simple. To begin, download the new template from the Brand Center. Make sure to save the new template to your computer’s desktop.
Next, double click on the template from your desktop. This will open the template. The first thing you will see is an icon that says New Slide. Do not click on it. Instead, click on the small arrow that is next to the words New Slide. Then, you will see a list of different kinds of slides. At the bottom of the list, click on Reuse slides.
Once you have done that, you will see a Reuse Slides box on the right of the screen. In the box, click on the Browse icon, and then click on the Browse File icon. Find and click on the old PowerPoint presentation, and then click on the Open icon. You will see all of your original slides in the Reuse Slides box.
Put your mouse of any of the original slides. Right click on the slide, and click on Insert All Slides. You will see your original slides appear in the new PowerPoint presentation. Most standard text slides will convert immediately, while the more complex slides will need more adjustments. To make the adjustments, click on the Layout button. Save your new PowerPoint presentation and you are set to go!