Backup faulty laptop?

My laptop is not working as the screen can't show any display. After checking with repair shops, I'm told that the video card is faulty and I decided to buy a new one. Is there any way I can backup my faulty laptop with the display not functioning? Thanks a lot.|||Do you have a Desktop monitor? If so, hook it up and look for the function key that resembles a monitor, on mine it is Function + F4 when you press that key the external monitor should show the video feed from the laptop