Yesterday I backed up my wallet to a thumb drive, I had a power failure early today and when I went to open the Ravencore wallet it crashed.  I have downloaded the QT wallet onto a second computer but can't figure out how to transfer the the information I have on the wallet.dat thumb drive file to the new qt wallet.  Nothing I do seems to work.  I am sure it is something simple but I don't know enough to figure it out.