13. A data processing apparatus according to claim 10 , further comprising: means for allowing the user to input an instruction to edit the data thus integrated and presented by said presenting means; and means for modifying the second data file that stores the data, according to the editing instruction.
10. A data processing apparatus according to claim 1 , wherein the definition file stores the information for identifying the component parts of the second data file, and wherein the data is the data of the component parts of the second data file.