File Extension WM2D File Format Working Model 2D data file WM2D stands for Working Model 2D data file. This was last updated in March 2012 By Margaret Rouse Browse File Extensions Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Ask a Question. Find an Answer. Ask your peers a question about this file extension. Ask a Question USB Storage Device Problems RPGLE Trigger - Return Changed Field What is the difference between logical data modelling, conceptual data modelling and physical data modelling?