Insert a new chart on your slide as shown in Figure 1, previously on this page.Even better, you can bring in data that's already on an existing Excel sheet using this step-by-step process in PowerPoint 2011 for Mac: You can change dummy data to your own values manually. Want to bring up this Excel sheet that contains data after your chart has already been created? Explore our Edit Chart Data in PowerPoint 2011 for Mac tutorial.