19.2.1.12 extLst

This element specifies the extension list within which all future extensions of element type ext are defined. The extension list along with corresponding future extensions is used to extend the storage capabilities of the PresentationML framework. This allows for various new kinds of data to be stored natively within the framework.

[Note: The W3C XML Schema definition of this element’s content model (CT_ExtensionList) is located in A.3. end note]