extension

presentation

 XMLP:  Standard presentation
 XMLPP: With pages

export

 XMLT: XML

translation

TEXT_UNIT: Text
GRAPHICS_UNIT: Graphics
SYMBOL_UNIT: Symbol
PICTURE_UNIT: img
REFERENCE_UNIT: Reference
PAGE_BREAK: Page_break

xmlcomment: comment
xmlcomment_line:
xmlpi: PI
xmlpi_line:
doctype_line:
cdata_line: