In this article we will be seeing how to export the BDC model from Central Administration.
Go to Central Administration => Application Management => Manage Service Applications => Business Data Connectivity Service Application.
In the ribbon interface, go to View tab.
In the drop down select BDC Models.
Select the BDC model to be exported.
In the ribbon interface, click on Export button.
Click on Export.
Click on Save.
Specify the path and click on Save.