Unpack the *.zip file, and you will get: *.pdf files containing 3d views with selected angle values and other important information such as screws needed for assembly. All *.dwg files are saved in the 2010 version. The *.dwg files are in 2d and 3d versions. *.jpg files are with weld proposal. If you do not have Autocad, all * .dwg files can be opened eg
www.gstarcad.net (Autocad equivalent, 2 weeks trial).