Converting icons without extension to .png?

Hi All,

I've tried as many search combinations of keywords as I can think of and I can't find an answer to this question.

How do I take icons in OS X without an extension, and convert them to PNG? Or at least convert them to something where I can open them in Photoshop?

Thanks in advance for any help!

//Thread Closed. Should have searched, eh?!

#403830

PC or Mac user ?

Edit

Anyway if you are a PC user follow the link .