The Lightolier (lighting products) website has information on all of their products. Conveniently, it's in a cross-platform format (PDF). HTML would have been better, but at least PDF is cross-platform. They wanted to make the files smaller, so they used ZIP compression. Well, there are tools on all platforms that support zip, though it's a little less cross-platform than PDF.
Finally, they contained the ZIP file in a self-extracting .EXE wrapper. So this cross-platform file cannot be read unless it's run on a Windows machine.