If you obtain a binary MEX file from another source, be sure
that the file was compiled for the same platform on which you want
to run it. The file extension reflects the platform, as shown in the
following table. To determine the extension for your platform, use
MEX File Platform-Dependent Extension
|Platform||Binary MEX File Extension|
Apple Mac (64-bit)
It is not possible to run a 32-bit MEX file from within a 64-bit version of MATLAB®.