Magic Number is a number embedded at or near the beginning of a file that indicates its file formats. It is also sometimes referred to as a file signature. It is a special data located at the begining of a binary data file to indicate ia type to a utility. Magic numbers are generally not visible to users. However, they can easily be seen with the use of a hex editor, which is a specialized program that shows and allows modification of every byte in a file.
Magic numbers is important to purpose significance of additional knowledge.
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