Broken screen and won't connect to external monitor

Hello,

I have an Acer aspire 5742g and my screen is broken. I know the laptop works since i can manage log in to windows (i can hear the log in sound), but the screen is all white and grey. I have a few documents i would really need for school, so i've tried to use an external monitor (both another laptop and a tv) but it doesn't work. I've tried pressing fn+f5, i've tried the Windows logo+P, but still it won't connect to another monitor. Is there any other way to recovertransfer files from my broken laptop to another laptop??