File Format

Here is some music -- or is it an image ? or some text ? or some video ?

Only Matrix surfers are able to recognise it, or the computer

00101100110100011101010101000101010000100100100 01010001010101011110111111101101011010101010101 00101010010101010101010101010100100100111110001 ...

A format and a header for each file

The suffix or the type mime express the type of content, the format, then the file starts with a header that gives more information on the way to read the file format

If a file was a map, the format would be the legend and the header the scale and the direction of North

HTML, Gif, JPEG, MOV etc are file formats (for data, encapsulation of data)