You can quickly visually flip through files in your Google Drive account just by tapping the left and right arrow keys on your keyboard. There are a couple of ways that you can access the new preview option. If you right-click on the name of a document or file you can select "preview." The preview option automatically appears if you click on the name of a PDF, image, or video. Either way, once the preview pane is open you can quickly flip through visual previews of all of your files.