String/XubString to OUString
String/XubString to OUString

Change-Id: I0b36d16375ef9ecc751bed1171ea2ecd0c524744

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core