You can convert a project in RDF format to Protégé-2000 by importing it. The original project is not altered. If you have no schema for your RDF (your instances do not have a declared type) the system will create a single class with the required properties and all imported instances will be instances of this class. You can then use Protégé-2000 to create a schema and to assign your existing instances to the appropriate classes.
To import existing RDF files:
Press the OK button and the system will load the schema and instances.
For more information about RDF files and Protégé, see RDF Support in Protégé-2000.
Next: Including a Project