I have to open Substance Alchemist in order to get a preview of the texture I want. I use vray if that helps at all. Also, I have the 3ds max asset library. None of these are helping me get a preview of what a texture looks like. I am going off Sand_002, Bark_007, Lava_012. This info is just about useless. There should be a preview option for explorer as well, just as you can preview a jpg(as most textures are).