Every product purchased comes in 3 different file formats ( .dwg, .dxf and pdf ). When a product is downloaded you will get a single zip file that contains the 3 file formats for each detail. All you need to do is unzip it. Just make sure you know the location of the unzipped files.
To open the drawings, you can use any CAD ( computer aided design ) software to open the .dwg and .dxf files. The pdf file can be opened with almost any application or software that can handle pdf formats.
All drawings were prepared CAD version 2007 format. Therefore, any version from 2007 and up can open the files.