Internal API. Parses the given file name according to the specified Art Data File Name Format and extracts the Document Identifier, Markup Layer Record ID, and Markup Layer Name where applicable. If formatString is null (default) will use the ArtDataFileNameFormat that is stored in the Data Provider. This should only be done after the ArtDataFileNameFormat is verified as valid, as it will cache the generated regex used for parsing the ArtDataFileNameFormat if formatString is null.