Contains the function used to summarize a data field or total.
| Namespace | urn:schemas-microsoft-com:office:excel | 
| Schema name | XML Spreadsheet 2000 | 
      
<xsd:simpleType name="FunctionType" >
  <xsd:restriction base="xsd:string">
    <xsd:enumeration value="Avg" />
    <xsd:enumeration value="Count" />
    <xsd:enumeration value="CountNums" />
    <xsd:enumeration value="Max" />
    <xsd:enumeration value="Min" />
    <xsd:enumeration value="Product" />
    <xsd:enumeration value="StdDev" />
    <xsd:enumeration value="StdDevP" />
    <xsd:enumeration value="Sum" />
    <xsd:enumeration value="Var" />
    <xsd:enumeration value="VarP" />
  </xsd:restriction>
</xsd:simpleType>