View a thumbnail of files in the Recent Documents and Open Documents lists.
When you hover over a file in either of the lists, a preview of the file is displayed along with the following information:
You can also include a thumbnail of the file next to the files in the list. To change the file icon to a thumbnail preview, click the drop-down list at the top of the Recent Documents or Open Documents lists and choose small icons, large icons, small images, or large images.