edit

lib/Store/Core.php

@@ -600,6 +600,7 @@ class Core
 			'video/x-sgi-movie' => 'movie',
 			'x-world/x-vrml' => 'flr',
 			'application/x-rar' => 'rar',
+			'application/vnd.android.package-archive' => 'apk',
 		);
 
 		if (isset($config[$mine])) {