File format¶

Under the hood, JVol files are .npz files. From NumPy's documentation:

The .npz file format is a zipped archive of files named after the variables they contain. The archive is compressed with zipfile.ZIP_DEFLATED and each file in the archive contains one variable in .npy format. For a description of the .npy format, see numpy.lib.format.

TODO: inspect contents dynamically