Matfile

MATLAB Fig is a format used by Mathworks' Matlab for storing formatted data.

This is a proprietary, binary format that appears to be fully supported only by Matlab. However, GNU Octave, an open source alternative to Matlab, should be able to read and write the format as well.

Links

 * MAT-File Format Specification
 * What is the difference between .m and .mat files in MATLAB
 * MAT file versions
 * Saving and loading a MAT-file in GNU Octave