Hi guys.
To begin with, thank everyone who reads this thread and sorry for my poor English.

I usually play an online game called Audition. I love it and now want to modify it. Just to make it more interesting and see what I can do ( not like make tools or hacks ). In the game folder, I found a lot of files which have to be decoded, or unpacked/packed in order to modify it. Like .acv, .bin... Just wondering if anyone can look at them I tell me what I can do, what books I can read or so. I am a newbie in C/C++ so the more details, the better. I really really appreciate..

Here is the link to download some files..
http://www.mediafire.com/?jium42i4m5z

Have a great day