I can't open my NEF files from my D800e in Photoshop CS6 13.0 x64. I have just updated to RAW Compatibility 6.05. All my images are stored on my Colorspace Hyperdrive.
You can update your Camera Raw through this link and that should help :
You need Camera raw 6.7 or higher, so if you're using 6.05, that won't work. Plus that is a Camera Raw for CS5 not CS6. If you do have CS6, you can update to 9.1. If you have CS5, you can update to 6.7.