HDF5 is the current version.
https://en.wikipedia.org/wiki/Hierarchical_Data_Format
HDF on GitHub: https://github.com/HDFGroup/hdf5
Install h5py package
# python -m pip show h5py Name: h5py Version: 2.10.0 Summary: Read and write HDF5 files from Python Home-page: http://www.h5py.org Author: Andrew Collette Author-email: andrew.collette@gmail.com License: BSD Location: f:\python36\lib\site-packages Requires: six, numpy Required-by: tensorflow #