[Zope] getting error in export and import on zope2.9

I am trying to import file from zope2.9 that has been exported in xml format from the same.I am getting error as follows. " Site Error An error was encountered while publishing this resource. Error Type: UnicodeDecodeError Error Value: 'ascii' codec can't decode byte 0x83 in position 10: ordinal not in range(128)" -- regards Shiv -- regards Shiv