Specifies the size of the groups for PivotItems when PivotItems have been grouped. Used in conjunction with GroupStart, GroupEnd, GroupStartAuto, GroupEndAuto, GroupType, ParentField and BaseField.
      
<GroupBy />
    | Element type | xsd:int | 
| Namespace | urn:schemas-microsoft-com:office:excel | 
| Schema name | XML Spreadsheet 2000 | 
| Element | Description | 
|---|---|
| PivotField | Contains information about a PivotField. | 
None.
None.
      
<xsd:element name="GroupBy" type="xsd:int" default="1" minOccurs="0" >
</xsd:element>