It's impossible to view a RAW file. It has to be processed quite a bit, making some assumptions, in order to be viewable. All you can do is to choose between different varieties of default RAW processing, such as the parameters you set (or defaulted to) in your camera settings, which some editors will pick up as the initial starting parameters with which to process the RAW, or the standard default set for your particular camera, which some editors will know, or a generic "fix this image" set of automated adjustments which will make good guesses as to what white balance to choose, what dynamic range, what sharpening, etc..
When people talk about displaying an unprocessed RAW image what they mean is one that they haven't knowingly applied any adjustments to. Why can't a RAW image be displayed directly? Several reasons, just one for example is that the dynamic range of a RAW image can be 14 stops, whereas your computer can display at best 9 stops, and a good print maxes out at around 7 stops.
If you want to make visible the full dynamic range, colour gamut, etc., captured in your RAW image, the only way of doing this is to push the image in various different adjustment directions, such as varying the colour temperature, pulling in highlight detail, lifting up shadow detail, changing exposure, to see how far it can be pushed before it deteriorates. Even then what you see is just relative, comparative to doing the same things to other images of yours, because "before it deteriorates" is only partly a property of the RAW image. It's also partly a property of your skill and understanding, and partly a property of how well your particular editor does those various transformations.
