How do I open a .MAT file on Windows or Mac?

You can open .MAT files using MathWorks MATLAB, GNU Octave (Free), SciPy (Python scipy.io), MATLAB Mobile. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .MAT to a standard format in your browser.

Is a .MAT file safe to open?

This format carries a safety rating of Low Risk. Load without MATLAB using SciPy in Python: scipy.io.loadmat("filename.mat")

Can I convert a .MAT file to other formats?

Yes! .MAT can be converted to formats such as .CSV, .JSON, .H5 directly in your web browser.

What should I do if a .MAT file is corrupted or won't open?

If your .MAT file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .MAT files?

You can open .MAT files using MathWorks MATLAB, GNU Octave (Free), SciPy (Python scipy.io), MATLAB Mobile.

Medical & Science • MIME: application/x-matlab-data

.MAT – MAT File Format

Q: What is a .MAT file?

A .MAT file is a MAT File Format associated with Medical & Science. MAT is the proprietary binary or HDF5-based data container used by MathWorks MATLAB to store variables, numeric arrays, multidimensional matrices, structs, and cell arrays.

MAT is the proprietary binary or HDF5-based data container used by MathWorks MATLAB to store variables, numeric arrays, multidimensional matrices, structs, and cell arrays.

Primary Category Medical & Science

MIME Type application/x-matlab-data

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .MAT

MathWorks MATLAB

windows, mac, linux • Free

GNU Octave (Free)

windows, mac, linux • Free

SciPy (Python scipy.io)

windows, mac, linux • Free

MATLAB Mobile

windows, mac, linux • Free