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="{902054C2-C7B5-48BA-BFB2-4D439D9758D6}"
  dateTime="2006-04-14T10:33:16" maxSheetId="4" userName="User 1"
  r:id="rId2" minRId="1" maxRId="11">
  <sheetIdMap count="3">
    <sheetId val="1"/>
    <sheetId val="2"/>
    <sheetId val="3"/>
  </sheetIdMap>
</header>

Notice that the user name, @userName, and date and time stamp, @dateTime, for the edit is stored along with an outline of the sheet structure. Use the @r:id value of rId2 and then follow the relationship expressed in revisionHeaders.xml.rels. In this way, the corresponding Shared Workbook Revision Log can be located.