Nothing to worry buddy,
There's extreme possibilty for recovering your files from your formatted hard disk using this best hard drive file recovery software available at http://www.****/unformat-formatted-hard-drive.html
Using this tool, I had successfully unformat formatted drive on my computer.
Just download from http://www.****/download#rwin and install the software on your PC, sit back and check out for the positive outcomes!!
Hope is little but still worth a try, try a free data recovery software to check wether the data are overwritten, here is a free version: http://www.freenew.net/windows/icare-data-recovery-soft... it is powerful and most data loss can be resolved by it. Furthermore it is free.
if it fails u can seek help from pros but this may cost some money and the result maybe the same.