XC software transforms library data into linked data that follows FRBR principles by enabling each part of a resource to be described as a subject, predicate, or object in an RDF triple. It takes data from sources like an ILS or MARC files, cleans it up, converts it to linked data using vocabularies, and makes the data accessible on the web. The goal of XC is to help libraries transition to linked data practices and tools to improve how users can navigate and discover resources.