Hello everybody,

I want to have a little modification in the rewrite new urls. Very little. Instead of ending by a number, i want them ending by a number.extension 

I want blabla/file/upload/360 becomes blabla/file/upload/360.mp3 (if file is an mp3, but it can also be a jpg, wav, ogg, ...)

In which files can i get the code to rewrite ? And because i'm not really pro, if you have any idea of how can i get what i want, don't hesitate to mention it ;o)

(i'm french, maybe i dn't use the exactly words, don't hesitate for asking more details)