Determine the appropriate row first then the column. Ask the question, do all files contain one record type or more than one record type? If all or many of the files only contain one record type, then all that is needed to know if the file contains more or less than 50 data elements types (DETs). If the file contains more than 50 data elements the file will be rated as average, if less than 50 data element types the file will be considered low. Any files that contain more than one record type can be singled out and counted separately.