Extend other file types in "File Upload"

Hello Michael,

You can add additional file type to wordpress. you can do that via adding some line to your themes functions.php. Before doing that, please check the MIME type of your desired filetype. You can find a pretty sophisticated list here,

add_filter('upload_mimes', 'additional_upload_format'); 
function additional_upload_format ( $existing_mimes=array() ) { 
// Windows Executable Installer file 
$existing_mimes['exe'] = 'application/octet-stream'; 
// Word Perfect File  
$existing_mimes['wp'] = 'application/wordperfect'; 
return $existing_mimes; 
} 

Its pretty simple to use actually. $existing_mimes['wp'] change wp with the callsign and extension of the file. and change 'application/wordperfect' to your desired mime type.

Thanks for your help! It works!

Happy to help.