DocumentID: ECMA-376/Part1/12.3.16
Title: ECMA-376, Part1: 12.3.16 Shared Workbook Revision Headers Part
Extracted-From: ECMA-376 Office Open XML File Formats, 1st Edition / December 2006
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12.3.16 Shared Workbook Revision Headers Part

An instance of this part type contains information about each of the editing sessions performed on the parent workbook at the worksheet level (worksheets added and rearranged in each session).

A package shall contain at most one Shared Workbook Revision Headers part. If it exists, that part shall be the target of an implicit relationship from the Workbook (§12.3.23) part.

[Example: The following Workbook part-relationship item contains a relationship to the Shared Workbook Revision Headers part, which is stored in the ZIP item handout revisions/revisionHeaders.xml:

<Relationships xmlns="...">
  <Relationship Id="rId9" 
    Type="http://.../revisionHeaders" 
    Target="revisions/revisionHeaders.xml"/>
</Relationships>

end example]

The root element for a part of this content type shall be headers.

[Example: revisionHeaders.xml contains the following:

<headers xmlns:r="..." guid="{233BEE23-EB5C-4542-905D-0230EFFED88B}" 
  diskRevisions="1" revisionId="4" version="3">
  <header guid="..." dateTime="..." maxSheetId="4" userName="..." r:id="rId1">
    <sheetIdMap count="3">
      ...
    </sheetIdMap>
  </header>

  ...

  <header guid="..." dateTime="..." maxSheetId="4" userName="..." r:id="rId3">
    <sheetIdMap count="3">
      ...
    </sheetIdMap>
  </header>
</headers>

end example]

A Shared Workbook Revision Headers part shall be located within the package containing the source relationship (expressed syntactically, the TargetMode attribute of the Relationship element shall be Internal).

A Shared Workbook Revision Headers part is permitted to have explicit relationships to the following parts defined by this Standard:

• Shared Workbook Revision Log (§12.3.17)

A Shared Workbook Revision Headers part shall not have any implicit or explicit relationships to other parts defined by this Standard.