What is THIS file?(repost)

What is this file? If it's an archive (like .zip), I would like to know which application will unpack/pack it. If it's an application, what created it? What opens/reads/performs it? This is a really quick job (and quick money)! Thanks Dom ## Deliverables 1) Deliverables must be in ready-to-run condition. 2) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform I'm running various desktops on Windows XP and Mac OS 10.3