Internal
The components written in this one's place, one after another, when it can't be written as a single element, such as a run with another run in its children. Undefined when it is written as itself.
Adds a child element to this component.
The child component or text string to add
This component (for chaining)
Creates and adds a new footnote to the collection.
Unique numeric identifier for the footnote
Array of paragraphs that make up the footnote content
Formats the footnotes, with the page numbers worked out for their document written into their fields, when the document's body is written with an estimate of its pages.
Represents the footnotes collection in a WordprocessingML document.
FootNotes manages all footnotes in a document and automatically creates the required separator and continuation separator footnotes. These special footnotes define the line that separates body text from footnotes and the line used when footnotes continue across pages.
Reference: http://officeopenxml.com/WPfootnotes.php
XSD Schema
Example