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MAT File Viewer

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MAT File Viewer opens .mat files * Every variable with its size and class, like MATLAB's…

By Matthew Thornton · Utilities
Debuts score 76NewRate it first

Why we expect it: A clear, well-described utility that fills a real niche for MATLAB users, with thorough format support.

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In short

MAT File Viewer opens .mat files and shows every variable with its size and class, similar to MATLAB's Workspace. It reads MAT-file versions v4 through v7.3, lets you drill into cell arrays and struct fields, and renders matrices as numbers or heatmaps. An optional one-time MAT Pro purchase adds descriptive statistics, charts, and CSV export.

Summary by Debuts, based on the App Store listing.

About

MAT File Viewer opens .mat files

* Every variable with its size and class, like MATLAB's Workspace, plus real thumbnails and Quick Look in Finder. • Reads every MAT-file version: v4, v6, v7 (compressed) and v7.3 (HDF5) • Workspace view: every variable, its size and its class • Double-click into cell arrays and struct fields, as deep as they go • Struct arrays open as tables of records you can sort and filter • Matrices as numbers or heatmaps; H×W×3 arrays as the images they are • N-D arrays page by page; sparse matrices as their nonzero pattern • Complex numbers, int64 and logicals shown exactly • Thumbnails and Quick Look for .mat files

MAT Pro (one-time IAP) adds the analysis toolset:

• Descriptive statistics for every column (n, missing, mean, SD, min, median, max) plus the Pearson correlation matrix • Chart builder: histograms, banded means, and scatter plots with a least-squares fit and r/r² • CSV export of matrices, struct arrays and tables

MATLAB is a registered trademark of The MathWorks, Inc. MAT File Viewer is an independent app, not affiliated with or endorsed by MathWorks.

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