Oracle File Extensions

Does anybody here know the file extensions for an oracle database and it's log file?

IE:
Access = *.mdb
SQL Server = *.mdf | *.ldf
Oracle = *.??? | *.???

You're my last hope... I've asked this on three programming forums, googled it for about 15 minutes, asked everybody in my office, and even called two ex-employees. Nobody can answer this amazingly simple question. Truly 4chan has the answer right?

Yeah, because it's so insaine to think that there is somebody out there that doesn't know the file extension for every file created by every piece of software on the planet... followed by an idiot named "Heaven" talking to himself.

Piss off.