Quick Time File Problem
File extension QTL, the file extension that allow quick time file to be used often having problem to be recognize by the computer, especially that using Windows operating system before Windows Vista. QTL file extension is build for Quick Time Player, entertainment software that enable user to view digital video from the by using universal file extension that is used in Quick Time Player.
Software that uses QTL file extension are Quick Time Player. With this unusual file extension QTL, Windows would not recognize the file without the latest driver that match the hardware computer.
Some solution for this problem is by updating your drivers in your official hardware vendor websites or doing a scan in your computer using some software that specialized on this driver scanning and updating. After updating the driver to accommodate File Extension QTL, your computer would be able to run the file with above software that uses the File Extension QTL.