3.1.4.19.2.2 GetWorkbookResponse

If the operation succeeds it MUST return a GetWorkbookResponse as follows.

 <s:element name="GetWorkbookResponse">
   <s:complexType>
     <s:sequence>
       <s:element name="GetWorkbookResult" type="s:base64Binary" minOccurs="0"/>
     </s:sequence>
   </s:complexType>
 </s:element>

GetWorkbookResult: A workbook file. MUST be present.