XDMF

Infobox file format
name = eXtensible Data Model and Format
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extension = xmf, xdmf
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genre = scientific data format
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url = http://www.xdmf.org

XDMF (eXtensible Data Model and Format) is a library providing a standard way to access data produced by HPC codes. Data format refers to the raw data to be manipulated, the description of the data is separate from the values themselves. Is distinguishes the metadata ("Light" data) and the values themselves ("Heavy" data). "Light" data is stored using XML, "Heavy" data is typically stored using HDF5, so some information is stored redundantly in both XML and HDF5. Python interface exist for manipulating both "Light" and "Heavy" data. ParaView and VisIt visualization programs are able to read XDMF.