Text file that contains a link to a QuickTime movie (.MOV) file; includes the MIME type and the location of the media file; may also include other QuickTime settings, which are defined by the following variables: autoplay controller fullscreen href loop playeveryframe qtnext quitwhendone QTL files are often referenced in Web page links. Clicking a QTL link will open QuickTime player if the Web server must be configured with "application /x-quicktimeplayer" as the MIME type for QTL files.