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1. yet another D7-related back-porting
2. yet more concise Save semantics
 TZXMLSSave.Create(XMLSS).Save(Path+'LazZexSample.xml');
 TZXMLSSave.Create(XMLSS).Save(Path+'LazZexSample.xlsx');
 TZXMLSSave.Create(XMLSS).Save(Path+'LazZexSample.ods');