5.31 http://schemas.microsoft.com/office/spreadsheetml/2020/richvaluerefresh Schema

 <xsd:schema targetNamespace="http://schemas.microsoft.com/office/spreadsheetml/2020/richvaluerefresh" elementFormDefault="qualified" xmlns:x="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns="http://schemas.microsoft.com/office/spreadsheetml/2020/richvaluerefresh" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <xsd:element name="refreshIntervals" type="CT_RichValueRefreshIntervals"/>
   <xsd:complexType name="CT_RichValueRefreshIntervals">
     <xsd:sequence>
       <xsd:element name="refreshInterval" minOccurs="1" maxOccurs="unbounded" type="CT_RichValueRefreshInterval"/>
     </xsd:sequence>
   </xsd:complexType>
   <xsd:complexType name="CT_RichValueRefreshInterval">
     <xsd:attribute name="resourceIdInt" type="xsd:int" use="optional"/>
     <xsd:attribute name="resourceIdStr" type="xsd:string" use="optional"/>
     <xsd:attribute name="interval" type="xsd:int" use="required"/>
   </xsd:complexType>
 </xsd:schema>