NotebookML Namespace

NotebookML is a legacy XML format defined by Wolfram Research, Inc. for representing Mathematica notebooks. NotebookML is superseded by ExpressionML. Mathematica notebooks export to ExpressionML or NotebookML XML documents without any loss of information. Conversely, you can import an ExpressionML or NotebookML document into Mathematica to get a notebook.

The tags and attributes used in NotebookML are specified by an XML document type definition (DTD) and correspond closely to the symbol names and structures used in notebook expressions. The NotebookML DTD is available at:
http://www.wolfram.com/XML/notebookml1.dtd

If NotebookML is being used by an application that conforms to the Namespaces in XML Recommendation, then the following namespace should be used:
http://www.wolfram.com/XML

Typical usage would be:

<Notebook xmlns="http://www.wolfram.com/XML">
   ...
</Notebook>

For More Information

• ExpressionML
  http://reference.wolfram.com/mathematica/ref/format/ExpressionML.html

• Mathematica and the notebook (.nb) format
  http://reference.wolfram.com/mathematica/guide/NotebookBasics.html

• Extensible Markup Language (XML) 1.0 Recommendation
  http://www.w3.org/TR/REC-xml

• Namespaces in XML Recommendation
  http://www.w3.org/TR/REC-xml-names