Mistral file extensions given to saved calculation and equipment selection files are as follows:-
Airwind - AWC
Cellwind - CLW
Coldwind - CWC
Crosswind - CRW
Linewind/Pipewind - LWC
Cooler/Condenser/Cond Unit/Compressor/Expansion Valve/Packaged System/Split System selection - MES
Mistral file name extensions are not case sensitive.