The chinese thing was a joke.
And the hexadecimal data you're looking at is just data. What the data represents is impossible to know without tinkering around.
Unless the format for this data is outlined in a document somewhere, the only ways to figure out what it means are:
1) look at the game's source code and see what the game is doing with this data
2) try to modify the data and see what changes in the game. (this is very difficult if the data is encrypted and/or CRC'd)
I'm not so sure this is a good project for a beginner. If you are into retro games (like 8-bit NES style games), there's a whole subculture of people who do this stuff to those older games (which I used to be a part of in a previous life). They even have a website that's fairly popular:
http://www.romhacking.net
There are tons and tons of documents about hex editing, image corrupting, etc, etc to get you started -- but they won't really be 100% on point for more modern PC games.
I'm sure there are other sites that are more dedicated to doing this thing with PC games, but I don't know of any offhand. Just google around looking for "game modding" websites. Or game modding tutorials.
But nobody here (or on any other forum) is going to be able to look at a block of data like that and just tell you what it does. It's impossible. Romhacking / game modding is an explorative, interactive process. There's never any silver bullet.