How to enable Vcard support to your WordPress theme because it won’t let you!

Add this function to your theme’s functions file

/*
	Add V card support
_______________________________________________
*/ 
add_filter('upload_mimes', 'custom_upload_mimes');
function custom_upload_mimes ( $existing_mimes=array() ) {
// add your extension to the array
$existing_mimes['vcf'] = 'text/x-vcard';
	return $existing_mimes;
}

Then add this line to your htaccess file:

AddType application/octet-stream vcf

Now your site will allow you to upload Vcards