Hello srikanth, 1. You can save your dwg file at lower dwg type. 1) enter ""save as"" 2) And set to lower dwg type. (ex) AutoCAD dwg 2004/2005 or lower. 3) Now Save your drawing file. 2. You can set default dwg type 1) Select "tool"" > Options >> 2) It shows new Windows 3) Click ""Fole open and Save >> Select AutoCAD 2004/2005 or lower 4) Now yoiur dwg would be saved to lower dwg type. Thanks CADian