MyDraw
From Just Solve the File Format Problem
MyDraw - Advanced Diagramming Software
MyDraw XML Drawing (NDX) - The default native MyDraw format. Preserves all formatting and information.
MyDraw Binary Drawing (NDB) - Native MyDraw format. Preserves all formatting and information.
MyDraw XML Drawing Template (NDTX) - Native MyDraw format. Preserves all formatting and information. Used as a template for new documents.
MyDraw XML Library (NLX) - The default native MyDraw library format. Preserves all formatting and information.
MyDraw Binary Library (NLB) - Native MyDraw library format. Preserves all formatting and information.