Upload ".sas" file

[eluser]loca[/eluser]
How can I config to upload a "sas" file
I just add to mimes.php in config folder

Code:

'sas' => array('application/x-sas', 'application/x-stat-sas')

And in my controller but It doesn't work.
Thanks

[eluser]toopay[/eluser]
try

Code:

'sas' => array('application/sas', 'application/x-sas', 'application/x-sas-data', 'application/x-sas-log', 'application/x-sas-output'),