Try creating a XSD schema from the attached file. Try validating this file against schema - it will say something like
no-xmlns: The {name} of an attribute declaration must not match 'xmlns'.
In the present version, XSD export does not support namespaces. Namespace attributes (xmlns) and attributes prefixed by "xml" namespace (xml:lang) should be removed from input to generate a valid XSD.
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In the present version, XSD export does not support namespaces. Namespace attributes (xmlns) and attributes prefixed by "xml" namespace (xml:lang) should be removed from input to generate a valid XSD.