Homebrew PCBs

Hi All,
        I have found a great PCB layout program which can be 
downloaded free from ...

http://b.urbani.free.fr

One small snag is that it is in French, not one of my languages,  
but in the main is very easy to understand. It can output both 
Gerber RS-274X and Excellon format 2 drill files. My problem is as 
follows. When I save a layout as a drill file, a panel pops up 
telling me that the file has been created. However I don't know 
where it saves it and also do not know what the file type is. Does 
anyone have the answer to this please ?

John.