Hierarchical Data Format (HDF)

Hierarchical Data Format (HDF) is a set of file formats (HDF4, HDF5) designed to store and organize large amounts of data. Originally developed at the National Center for Supercomputing Applications, it is supported by The HDF Group, a non-profit corporation whose mission is to ensure continued development of HDF5 technologies and the continued accessibility of data stored in HDF.

  Filename extension   .hdf, .h4, .hdf4, .he2, .h5, .hdf5, .he5
  Developed by   The HDF Group
  Type of format   Scientific data format
  Website   www.hdfgroup.org

How to read HDF data format