all characters on a computer is made up by the hexadecimal system. 1 is 1, 2 is 2, and it keeps on like that up to 9 which is 9, but 10 a, 11 is b, 12 is c, 13 is d, 14 is e and 15 is e. 16 will be 10
look here coz you prolly didn' understand a shit of my stupid talk Hexadecimal - Wikipedia, the free encyclopedia

anywayz, you wont be able to use the windows hex editors, so download this 0xED.its a very good one for mac

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