Vertere is a spreadsheet->RDF conversion tool based on a templating mechanism. Lines in CSV or TSV files are read sequentially, each line resulting in one or more RDF resources, while each column value can result in one or more triples about this resource.
(C) 2012 Rob Styles
Contributor: Knud Möller
Assuming PHP is installed, the following shows how to convert an input.csv file with Vertere, using the mapping specification mapping.ttl and writing to output.nt in N-Triples (all on the command line):
cat input.csv | vertere_mapper.php mapping.ttl > output.nt
For more detailed examples, look in the /Examples folder!