Can Blender open .DDS files? I'd like to open some .dds image files in Blender as I've extracted some files from a game and wish to view them...

Does anybody know if it's possible (either by default or through an addon) to open .dds files in Blender? And if so, how to use them?
Yes, Blender does open .dds files, though Cycles currently has a bug in 2.79 where some .dds image textures can't be seen in rendered viewport or in the final image, showing a pink texture instead.

This can be solved by converting the image to another format, like .png.

Here's a great answer on how to use an image texture in Cycles: How do I put an image texture on a material in Cycles?

Here's a similar question (and answer) for Blender Internal: [How to] add an image to an object [in Blender Internal]