This read-only string provides a human-readable message describing the outcome or state of a file transfer, guaranteed to be present when fXfrStatus is succeeded or failed. Admins read it to get the specific reason behind a transfer's success or failure, rather than just the coarse status code. When fXfrStatus reports failed(6), fXfrStatusText might read "connection refused" or "file not found," telling the admin exactly why the transfer didn't complete.