N3 parser/validator


I'm trying to upload to Virtuoso a .n3 file through the Virtuoso Conductor, but I receive the following error message:

You have attempted to upload invalid data. You can only upload RDF, Turtle, N3 serializations of RDF Data to the RDF Data Store.

I found an online parser (e.g http://www.rdfabout.com/demo/validator/), but it's no help for me, since I want to upload a 1.3 GByte sized file.

Does anyone know a locally executable N3-parser/validator, which throws also any type of debbuging information? (at least line that provoked the fail :P )

Thanks in advance!