Thanks for taking the trouble to respond Jim. Worked a treat.

Currently in the process of adding RNAS Yeovilton to my FSX scenery using the package which can be downloaded on this site but I am missing one file namely

MAIW EGXC bldgs
RAF 121 EAW RAF Coningsby
Barry Taylor & Nick Black
Flightsim.com
maiwrafc.zip
https://www.flightsim.com/vbfs/fslib.php ...