To be honest, if you can't work out how a hex editor shows data, then you're probably trying to take on a task that is way beyond your current skill set: the picture shows a "standard" hex editor with hex byte view on the left (where every byte is displayed separately as a two digit hexadecimal number) and a character view on the right (where the same bytes are shown as visible characters in they are in the ASCII standard character set "printable" range, and as a '.' if they aren't.
Bits it doesn't show, as there are eight of them to a byte and it would take too much space: it isn't difficult to convert though, each hex digit value translates to a single set of four binary digits:
0 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
8 1000
9 1001
A 1010
B 1011
C 1100
D 1101
E 1110
F 1111
And pretty much, a hex editor can't tell you Endianness unless you know the range and size of some of the values (assuming all values are the same size, which just isn't the case): four bytes 01 00 00 00 could be read in many, many ways - from "1" as a little Endian 32 bit number to 16,777,216 as a Big Endian 32 bit number, via two 16 bit numbers, four 8 bit numbers, or half of a 64 bit number!
Plus... reverse engineering game files is quite possibly in breach of your licensing agreements, and hot guaranteed to be simple even it it wasn't: manny are compressed so what you see is not what you get, and a trivial change can "break" the whole file.
If I was you, I'd play the game, and get better at it - it's probably easier than trying to reverse archive files and cheat! :laugh: