L.2.10.3.2.1 Summary Revision Table

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

Inside the summary table there is a revision header definition corresponding to the time of the edit:

<header guid="{A3A5EE09-2092-433C-895D-77D5A15DC847}"
  dateTime="2006-04-14T10:34:10" maxSheetId="4" userName="User
  r:id="rId3" minRId="12" maxRId="15">
  <sheetIdMap count="3">
    <sheetId val="1"/>
    <sheetId val="2"/>
    <sheetId val="3"/>
  </sheetIdMap>
</header>

This time the user name has been updated. Use the r:id value of rId3 and then follow the relationship expressed in revisionHeaders.xml.rels. In this way, the corresponding Shared Workbook Revision Log can be located.