In order for the OpenCOLLADA exporter to be active, some options must be enabled or disabled in the
						
Plug-in Manager
						
						. To find it, go to
						
							Window > Settings/Preferences > Plug-in Manager
						
						.
					
						The
						
							fbxmaya.mll
						
						plug-in must be unchecked. The
						
							COLLADAMaya.mll
						
						must be checked as both
						
Loaded
						
						and
						
Auto Load
						
						.
					
					Next, select File > Export Selection and open the dialog box.
					Under 一般选项 , be sure that OpenCOLLADA exporter is selected and set as the default file extension. Under General export options , check that the following options are active.
					The triangulate option must be checked before exporting.
Finally, choose the location for the COLLADA file to be saved. It is a good practice to keep all source art, including COLLADA files, in a folder outside of your project folder.