Have you read the tutorials yet? If so you'll realize now that the downloads from this site are installers that you need to run. File Open commands apply to track and point data in GPX or GDB format.
Also, neotoxo, it looks like you are quoting somebody regarding the "file open" commands. It doesn't appear to be in this thread so it would help understand your context if you included a reference to the thread it occurred in.
FYI, this is a quote. The button for it looks like a cartoon speech balloon.