Is there any way to import a custom Interconnect and Accessories Library?

The excel import only imports to the Connectors Library, and not the Interconnects library which shares the same  Component Library Wizard. And the default mandatory fields don't match the default cable library anyway. But that's a different conversation. 

When opening the default interconnects xml in the Compnent Library Wizard, the Save As does not allow for xls format. 

I want to import our 200+ terminals already released in our document control system. But I can't spend the time entering one at a time in the Routing Library Manager. 

Is there a way I can use excel to save as an xml that matches the SolidWorks xml format. The native excel save as xml looks different than Solidworks. I think I need a specific schema xsd to accomplish this.