Reserved for future use.
| Namespace | urn:schemas-microsoft-com:office:excel | 
| Schema name | XML Spreadsheet 2000 | 
      
<xsd:simpleType name="CacheDetailsType" >
  <xsd:restriction base="xsd:string">
    <xsd:enumeration value="True" />
  </xsd:restriction>
</xsd:simpleType>