Upload matlab and mesh files

Hello,

Being currently building an application to share Matlab and mesh files, ".m" and ".mail", I have problems uploading them to my server. I yet add two lines of command in the configuration file, mimes.php. Could you tell me the best way to upload these files?

mimes.php
// Add for Mastlab and mesh files
        'm'     =>      'application/octet-stream',
        'mail'  =>      array('application/octet-stream', 'text/plain'), etc...