Growing tired of the same old built-in Google Slides and Keynote templates? Visit the Slides Carnival website. It offers oodles of template options that match your presentation needs and mood. Feeling Inspirational, Playful or Creative? Slides Carnival has free downloadable templates that match your mood and visual interests to spiff up your presentation. Each template offers a Google Slides or a PowerPoint version. If you’re a Keynote user, then just download the PowerPoint template. Launch Keynote, then click Open and choose the PowerPoint file you downloaded (.ppt).