Extended File Properties Part

Content Type:

application/vnd.openxmlformats-officedocument.extended-properties+xml

Root Namespace:

http://schemas.openxmlformats.org/officeDocument/2006/extended-properties

Source Relationship:

http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties

An instance of this part contains properties specific to an Office Open XML document.
example: : A PresentationML document specifies the number of slides in this presentation when last saved by a producer.

A package shall contain at most one Extended File Properties part, and that part shall be the target of a relationship in the package-relationship item for the document.

example:
<Relationships xmlns="…">
  <Relationship Id="rId4"
    Type="http://…/extended-properties" Target="docProps/app.xml"/>
</Relationships>

The root element for a part of this content type shall be< Properties>.

example:
<Properties …>
  <Template>Normal.dotm</Template>
  <TotalTime>0</TotalTime>
  <Pages>1</Pages>
  <Words>3</Words>
  <Characters>22</Characters>
  <Application>Sample Producer</Application>
  <DocSecurity>0</DocSecurity>
  <Lines>1</Lines>
  <Paragraphs>1</Paragraphs>
  
  <AppVersion>12.0000</AppVersion>
</Properties>

here's some content markup from a SpreadsheetML document:

<Properties …>
  <Application>Sample Producer</Application>
  <HeadingPairs>
  
  </HeadingPairs>
  <TitlesOfParts>
  
  </TitlesOfParts>
  <Company>Consultant</Company>
  
</Properties>

and here's some content markup from a PresentationML document:

<Properties …>
  <Template>ppt_template_sdwest05</Template>
  <TotalTime>3166</TotalTime>
  <Words>37</Words>
  <Application>Sample Producer</Application>
  <PresentationFormat>On-screen Show</PresentationFormat>
  <Paragraphs>15</Paragraphs>
  <Slides>2</Slides>
  <Notes>2</Notes>
  
  <HeadingPairs>
  
  </HeadingPairs>
  <TitlesOfParts>
  
  </TitlesOfParts>
  
</Properties>

A Extended File Properties part shall be located within the package containing the source relationship (expressed syntactically, the @TargetMode attribute of the <Relationship> element shall be Internal).

An Extended File Properties part shall not have implicit or explicit relationships to any other part defined by this Standard.