Exporting
an XML document is the process of writing a SAS data set of type DATA
to an output XML document. The XML engine exports an XML document
by translating SAS proprietary format to XML markup.
To export an XML document,
you execute the LIBNAME statement for the XML engine in order to assign
a libref to the physical location of an XML document to be created.
Then, you execute SAS code that produces output such as a DATA step
or the COPY procedure.