I ran one of my xml files through a schema generator and everything generated was what was expected, with the exception of one node:
<xs:element name="office" type="xs:NCName"/>
What exactly is xs:NCName? And why would one use it, rather xs:string?
NCName is non-colonized name e.g. "name". Compared to QName which is qualified name e.g. "ns:name". If your names are not supposed to be qualified by different namespaces, then they are NCNames.
xs:string puts no restrictions on your names at all, but xs:NCName basically disallows ":" to appear in the string.