Summary Revision Table

Contents of the Shared Workbook Revision Header part (revisionHeaders.xml).

<header guid="{894981D2-DACF-4C1B-951C-EB199EA01DBF}"
  dateTime="2006-04-14T10:36:10" maxSheetId="4" userName="User 2"
  r:id="rId4" minRId="16" maxRId="20">
  <sheetIdMap count="3">
    <sheetId val="1"/>
    <sheetId val="2"/>
    <sheetId val="3"/>
  </sheetIdMap>
</header>

Use the @r:id value of rId4 and then follow the relationship expressed in revisionHeaders.xml.rels. In this way, the corresponding Shared Workbook Revision Log part can be located.