As cpopp stated, you don't need to read from
X-CTU, you should read from the Serial Port
where your X-Stick is. Once you achieve this in your program, you will read binary data in the same format you see in X-CTU.
The data output format will depend on how you configure your X-Stick (API or AT, refer to Reference Manual on how to parse them). I suppose that your application will receive data from more than one device, so AT will not be enough, but you can start with that as it is easier to parse (again, refer to the Ref Manual).
Hope it was helpful. Best regards,
P/S: The programming language makes no difference, as long as you can open the serial port. This
may help you getting started if you prefer Processing, but you can do it as well in C/C++, Python, Java, etc.