XDMF

Not to be confused with XMDF.

XDMF (eXtensible Data Model and Format) provides a standard way to access data produced by HPC codes.^[1] Data format refers to the raw data to be manipulated, the description of the data is separate from the values themselves. It distinguishes the metadata (Light data) and the values themselves (Heavy data).^[1] Light data is stored using XML, Heavy data is stored using HDF5,^[1] so some information is stored redundantly in both XML and HDF5. APIs to read and write XDMF exists for multiple programing languages.^[1]

eXtensible Data Model and Format[1]
Filename extensions	xmf, xdmf
Type of format	scientific data format
Website	xdmf.org