The file 'Print Test And Calibration X Y 3D Printer Model' is (stl) file type, size is 540.0B.
This will allow you to test your bed leveling as it prints on all quarters of the bed.
You'll be able to check if your calibration is good: if ok, you'll have a 100mm x100mm square and the line will be 2 mm large and 2mm hight.
