MATLAB Mat File Level 4

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A Mat-file stores data in binary form. You can read and write Mat-files using MATLAB. Level 4 MAT files are compatible with MATLAB versions up to Version 4.

Identify it

Extensions	`.mat`
MIME types	`application/x-matlab-data`
PRONOM	`fmt/1550`
Wikidata	`Q28771107`

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Open it

Hermes ProjectOpen sourcewrites · GNU Lesser General Public License
ImageMagickOpen sourcereads and writes · ImageMagick License
SciTEOpen sourcereads and writes · Historical Permission Notice and Disclaimer
ConverseenOpen sourcereads · GNU General Public License, version 3.0
LabPlotOpen sourcereads · GNU General Public License, version 2.0
PhotoRecOpen sourcereads · GNU General Public License
Q1122464Open sourcereads · GNU General Public License, version 2.0 or later
Q3898244Open sourcereads · BSD licenses / GNU General Public License / GNU Lesser General Public License
QScintillaOpen sourcereads · GNU General Public License, version 3.0
SciPyOpen sourcereads · BSD licenses
MATLABreads · proprietary license
Smultronreads

Convert it

To	With	Fidelity	Command and losses
Portable Network Graphics	ImageMagick	Lossless	`convert in.mat out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
Tagged Image File Format	ImageMagick	Lossless	`convert in.mat out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
GIF 89a	ImageMagick	Lossy	`convert in.mat out.gif` Reduced to 256 colours.
JPEG File Interchange Format 1.02	ImageMagick	Lossy	`convert in.mat out.jpg` Lossy compression.
WebP	ImageMagick	Lossy	`convert in.mat out.webp` Lossy compression.

Sources

From PRONOM, Wikidata. Updated 2026-10-20.

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