open winhex/hexworkshop goto the address copy the bytes that you want. The array of bytes is just a representation of code or data, if you have used a cheat eninge script you will see the assembly code in them, also you can take notice of the [Enable] and [Disable] sections. Normally the code you want to find will be the disable, and if you dont have the bytes for that you can try writing it in assembly or doing an opcode scan. The length can be whatever you want say there is a code like
Code:
mov edx,[edx+0c]
add edx,0A
you can just type this into a disassebler and you will get
Code:
[COLOR="DeepSkyBlue"]01111111 [/COLOR] [COLOR="Red"] 8B52 0C [/COLOR] [COLOR="Yellow"]MOV EDX,DWORD PTR DS:[EDX+C][/COLOR]
[COLOR="DeepSkyBlue"]01111114[/COLOR] [COLOR="Red"]83C2 0A[/COLOR] [COLOR="Yellow"]ADD EDX,0A[/COLOR]
the red are the bytes
you can try scanning for say 8B 52 0C and if there are a billion results you can add the second part to get 8B 52 0C 83 C2 0A
the length just makes it more specific
then you can scan for that array of bytes in winhex or even cheat engine hex scanner