# rapper > The Raptor RDF parsing utility. > Part of the Raptor RDF Syntax Library. > More information: . - Convert an RDF/XML document to Turtle: `rapper {{[-i|--input]}} rdfxml {{[-o|--output]}} turtle {{path/to/file}}` - Count the number of triples in a Turtle file: `rapper {{[-i|--input]}} turtle {{[-c|--count]}} {{path/to/file}}`