When using "open" menu command, foobar will recognize those default supported file extensions, In my case I installed component so it can play .rar files without extracting them, and it can play mkv files as well, but I have to either select "all files", or drag the file to foobar window.
However, I'm using a phone to control a remote PC, leave me neither will work. Is it a way to add those file extensions to default supported types?