In photoshop cs6 camera raw opens your camera raw files into photoshop.
Are you not able to open your camera raw files into photoshop?
Cs6 doesn't have the option for the Camera Raw filter in the Filter menu as photoshop cc does.
You could open your files through camera raw as smart objects and then you can double click on the
smart object thumbnail in the layers panel to bring up camera raw.
There is also a panel (script) by Russell Brown for photoshop cs6 that kinda mimics having the camera filter as it is in photoshop cc
http://www.russellbrown.com/scripts.html
(Edit Layers in ACR 1.1.8)
The camera raw plugin should be in
C:\Program Files (x86)\Common Files\Adobe\Plug-Ins\CS6\File Formats
and/or
C:\Program Files\Common Files\Adobe\Plug-Ins\CS6\File Formats