How Do I Create Proxy Files And Apn On My Pc?

Pls guys I need info on how to create proxy files on the computer. I tried it once on a laptop with vistas but I couldn't edit the format, so I moved on to a desktop with xp and I was able to change the format to .prov. I tried to send it to a phone but the phone said 'invalid settings discarded'. Please I need anybody that knows what to type and the encoding to use to drop it here for me. Thanks

Thanks man, but I would like to know how to do it offline on notepad.

@tunnex190: I know some guys in this phone section can do it. I've seen some guys discussing something like that in the phone section chat room. All I need is what to type and the encoding to use. I'm counting on you guys. Thanx