I just add a little bit about hex format and its usage. Hex codes helps simplify binary codes in many areas of computing.
Hexadecimal is not used by computers - it is used by humans to simplify binary to make it easier to understand. Any information written in hex format doesn't understand by computers. That's why computers can translate hexadecimal into binary form.
Manualy converting information written in hex format is quite tedious and consume a lot of time.
However, an online hex to text conversion utility will be benificial to do the task in a few instances.