Windows Explorer in Windows Vista and Windows Server 2008 also introduces a new layout. The task panes from Windows XP are replaced with a toolbar on top and a navigation pane on the left. The navigation pane contains commonly accessed folders and preconfigured search folders. Eight different views are available to view files and folders, including extra large, large, medium, small, list, details, tiles, and content. In addition, column headers now appear in all icon viewing modes, unlike Windows XP where they only appear in the details icon viewing mode. File and folder actions such as cut, copy, paste, undo, redo, delete, rename and properties are built into a dropdown menu which appears when the Organize button is clicked. It is also possible to change the layout of the Explorer window by using the Organize button. Users can select whether to display classic menus, a search pane, a preview pane, a reading pane, and the navigation pane. The preview pane enables users to preview files (e.g., documents or media files) without opening them. If an application, such as Office 2007, installs preview handlers for file types, then these files can also be edited within the preview pane itself.