Is it possible to use OpenRefine extensions in OntoRefine (part of GraphDB 8.3)? And if yes, how?
What version of OpenRefine is OntoRefine based on?
GraphDB support replied to my e-mail:
In my case, GraphDB version is 8.3.1 and the installer placed it into C:\Users\\AppData\Local\GraphDB Free\ (on Windows)
So theoretically, it is possible to unpack the graphdb-framework-openrefine-8.3.1.jar file, add a plugin, repackage and replace.
In practice, it's just too much work and it's probably easier to use a standalone OpenRefine and export from there into GraphDB.