Aeccland.shx

: Instead of just dashes and dots, it allows for symbols (e.g., a small 'S' for sewer lines) to be repeated along a path. Maintain Scalability : The shapes within AeccLand.shx

If you are seeing a "Missing SHX Files" dialog when opening a DWG, it usually means the drawing was created using Civil 3D or Land Desktop components, but the specific file is not in your current AutoCAD search path. Key Technical Details aeccland.shx