Specifies how groups are ordered in a PivotTable field.
| Namespace | urn:schemas-microsoft-com:office:excel | 
| Schema name | XML Spreadsheet 2000 | 
      
<xsd:simpleType name="GroupTypeType" >
  <xsd:restriction base="xsd:string">
    <xsd:enumeration value="Range" />
    <xsd:enumeration value="Seconds" />
    <xsd:enumeration value="Minutes" />
    <xsd:enumeration value="Hours" />
    <xsd:enumeration value="Days" />
    <xsd:enumeration value="Months" />
    <xsd:enumeration value="Quarters" />
    <xsd:enumeration value="Years" />
  </xsd:restriction>
</xsd:simpleType>