NPY is a binary file format for storing data from the NumPy Python package.

The commands Import, Export, ImportMatrix, and ExportMatrix can read and write to the NPY format.

$\mathrm{Import}\left(''example/mat100-3.npy''\,\mathrm{base}=\mathrm{datadir}\right)$

numpy.lib.format, https://numpy.org/devdocs/reference/generated/numpy.lib.format.html, NPY format.