string MyDir = RunExamples.GetDataDir_ConvertingCAD();
			string sourceFilePath = MyDir + "conic_pyramid.dxf";
			using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
			{

				for (int i = 0; i < cadImage.Entities.Length; i++)
				{
					if (cadImage.Entities[i].TypeName == CadEntityTypeName.INSERT)
					{
						CadBlockEntity block = cadImage.BlockEntities[(cadImage.Entities[i] as CadInsertObject).Name];

						foreach (CadBaseEntity baseEntity in block.Entities)
						{
							//  processing of entities
						}
					}
				}