Photoshop CS and NikonD-70

Hello,
I bought a camera Nikon D-70 and when I use files RAW, my Photoshop CS,
doesn't open them, an error takes place.
My question is: reason Photoshop CS doesn't recognize the file RAW of my
Nikon D-70?.
Pardon for my English, text translated by computer.
Received on Sat Nov 13 02:25:36 2004