Here is a list of all enum values with links to the classes they belong to:

### - u -

- Undef : libwps::MultiplanParserInternal::Zone
- UNKNOWN : libwps_tools_win::Font, WPS8ParserInternal::Frame
- Unknown : LotusGraphInternal::ZoneMac, LotusGraphInternal::ZonePc, LotusGraphInternal::ZoneWK4, Quattro9GraphInternal::Graph, QuattroGraphInternal::Graph, WPS4ParserInternal::SubDocument, WPS8ParserInternal::SubDocument
- UnknownError : libwps_OLE::IStorage
- UnknownObject : WPS8TextInternal::Object