The data is a list of triples. They can be in .nt format, for example. They can also be in a CSV that looks like .nt format without all the angle brackets and escaping, if that would be better.
Contrary to the assumptions of the OrientDB CSV tutorial, my edges are not being exported from a SQL database. The nodes aren't, for example, foreign keys into a SQL table. They don't have sequential IDs. They are just strings that identify the things that the edges connect. This is typical in N-Triples.
The triples are not currently in any kind of relational database, which I think is what Teleporter is about.
Have you already tried http://orientdb.com/docs/last/Graph-Batch-Insert.html?
In case you import data from a RDBMS, you can use Teleporter: http://orientdb.com/docs/last/Teleporter-Home.html.