A mapped elements relationship with other elements cannot be preserved

Hi,

I am trying to create an XML file from an XSD using excel macros and data from excel worksheet. The mapping takes place fine. However, when I try to save the mapped items into an XML file using SaveAsXML function, it gives me the following reason why the XML is not exportable:

A mapped elements relationship with other elements cannot be preserved

Could someone please help is resolving this issue?

Thanks