Reading Opera *dat files Objective C

I'm trying to read the Opera Cookie file, which has the *dat file extension. Opening the file in TextEdit reveals a mess...does anybody know how thi开发者_C百科s file is composed and how I can open this using Objective-C?

Edit: I did find this: http://www.peeep.us/4899d1fa which reveals that they're created using a "general binary format". How can I read this?

---

The documentation for cookies file format in Opera is available again. Thanks David Schiefer to have pinged us.