Works perfectly! thanks.

Ok, so .WTEX files are really just .DDS files with an additional header. If you edit the file and delete everything prior to the characters 'DDS |' then they will open in any program that can edit DDS files (Photoshop, etc). I'm keen to know what the header info is, but it's not that hard to write a...

These files contain .dds textures... so WTEX appears to be some sort of a container file

I am also interested in obtaining image/texture information from these files...

Most assuredly none of that information is in the game files... Instead, it resides on the servers and is transmitted to the client when you look at your items. The game files only include graphics, sound, and the code to display everything.