This refrain just cheeses me right off every time. Nothing is human readable! Everything requires a program to read it, because no human being can read states of charge or states of magnetic polarization directly.
What makes something 'human readable' or not is a software tool. Underlying that tool is a data format that the tool can accept and display. What everyone means when they try to sound smart by saying 'human readable' is just 'plain text.' In other words, they know where to find the dumbest possible reader/editor for it. Text editors are the dumbest possible editors because they cannot constrain edits to conform with the grammar of the interface language; they allow bugs at a point in the development process where it is trivial to disallow bugs, especially considering that interface languages should probably be, at most, regular languages.
I'll step off my soapbox, now.