RAW files are not image files. They cannot be seen; they don't make sense in a "visual" format. They are the "raw" data captured by your sensor. In order to be viewable, they must be processed into an image file (like JPG). When you look at a RAW file on the back of your camera you are looking at a JPG, albeit a JPG "preview", this is what your RAW file would look like should you convert it there and then using your camera's default conversion parameters.
You can upload to a RAW editor (like Lightroom, for example) and that will, again, show you a JPG preview but the huge amounts of "extra" data will still be there, lingering around in the digital ether, this means you have far more latitude for converting the image into a visible format that YOU are happy with (not one that your camera's designers think is a good one-size-fits-all conversion). Once you convert to JPG you throw out all the extra data, giving you a much smaller file, before you convert you can use that data to, for example, rescue apparently blown highlights and things like that.
RAW does NOT give you better images. It simply gives you more latitude for getting the best from your images.
Think of a RAW file sort of like undeveloped film, straight from the back of an old camera. You can't see the image on it, but it has lots of potential for being processed in different ways to give you lots of different "interpretations" of your image. The obvious benefit over this old system is that you can mess around with RAW files as much as you want; once you start to process film it's irreversible.