Are you referring to the Carenado Mooney Ovation M20R? If so, and if you installed it in the default location, you should find all documentation, including checklists, here:
C:\Users"YOUR USER"\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\Packages\Official\OneStore\carenado-aircraft-m20r-ovation\SimObjects\Airplanes\Carenado_M20R_Ovation\Documentation
Also there is more information and links in this thread: