Using /who to track networks of players

[esis_swe]

Hey!

Im wondering wether its possible to create an add on that uses the /who command to track in what zone players from a selected guild (or perhaps where all players on a server/zone are) are and save the information in an excelfile?

It would also be nice if this add on could be automatic so you could leave your computer on for a long period of time while the add on works for you.

With it you could map out who plays with who on an entire server!