Here's a handy "Free" tool for easy file viewing in windows. It was a real godsend finding this. Now I can view all these files right inside explorer. It's Awesome for viewing your texture files!
ThumbView enables image thumbnails and tooltips in MS-Windows Explorer for filetypes that are not natively supported. It started with PCX, TGA, DDS and PNG images, but now ThumbView supports an amazing 19 image types - directly inside any Explorer window!
Supported filetypes
.cut, .dcx, .dds, .mdl, .mng, .pcd, .pcx, .pic, .pix, .png, .pnm/.pbm/.pgm/.ppm, .psd/.pdd, .psp, .pxr, .sgi/.rgb, .tga/.vda/.icb/.vst, .tif/.tiff, .wal, .xpm.
http://www.seriema.net/thumbview/index.php?page=download
Edit: Sorry Mods if this is in the wrong place. I use it to help organize my textures for my modeling, so I posted it here.
In the Universe, nothing ever stays the same.