Extended Properties

Extended properties are a predefined set of metadata properties that are applicable to Office Open XML documents. These properties extend the set of core properties defined in Part 2: "Open Packaging Conventions" which are common to all packages.

Extended properties are stored within an Extended File Properties part with:

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

• Content Type: application/vnd.openxmlformats-officedocument.extended-properties+xml

Each extended property is represented as an element in the extended properties part. Extended properties elements are non-repeatable and may be empty or omitted. If all extended property elements are omitted then the extended properties part may be excluded from a document.

[Example: A sample extended file properties part:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Properties xmlns="http://…/extended-properties"
xmlns:vt="http://…/docPropsVTypes">
..<Template>Sales Report.dotm</Template>

..<TotalTime>0</TotalTime>

..<Pages>1</Pages>

..<Words>166</Words>

..<Characters>948</Characters>

..<Application>Microsoft Office Word</Application>

..<DocSecurity>0</DocSecurity>

..<Lines>7</Lines>

..<Paragraphs>2</Paragraphs>

..<ScaleCrop>false</ScaleCrop>

..<Company>Northwind Traders</Company>

..<LinksUpToDate>false</LinksUpToDate>

..<CharactersWithSpaces>1112</CharactersWithSpaces>

..<SharedDoc>false</SharedDoc>

..<HyperlinksChanged>false</HyperlinksChanged>
..<AppVersion>12.0000</AppVersion>
</Properties>

end example]