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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.

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

$\begin{array}{c}\left[\begin{array}{ccc}0.234249322400000& 0.179930282900000& 0.513738536200000\\ 0.290744808900000& 0.895360036900000& 0.261734109700000\\ 0.778012250000000& 0.0658764212400000& 0.723531145300000\\ 0.315783705700000& 0.0587212337700000& 0.510832738500000\\ 0.0851711824800000& 0.179176501700000& 0.584945293600000\\ 0.0635418029900000& 0.809340492600000& 0.703851122700000\\ 0.344719109200000& 0.903455845300000& 0.821961458600000\\ 0.509176396800000& 0.299965700800000& 0.219511973900000\\ 0.919319408900000& 0.627900835600000& 0.412860164400000\\ 0.470567422300000& 0.933326013300000& 0.255716957900000\\ ⋮& ⋮& ⋮\end{array}\right]\\ \text{100 × 3 Matrix}\end{array}$

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