I haven't seen anyone else on here that has a Samsung NX11 but wanted to post an FYI, if anyone shows up and does a search
The raw file format .SRW is not recognised straight out of the box by Adobe Photoshop CS6 (I don't know about any other software)
What I had to do was Batch Rename the Files to have a .CRW extension and then they are recognised fine with no apparent loss of functionality
This also makes the Windows Camera Import Wizard say that there are no images to import on the camera when connecting via usb (which caused me to panic about losing all my photos!)
You have to navigate to the camera itself and manually copy and paste the files.