To make it possible to easily start an application without directly specifying the application by transferring 1st and 2nd data files to an application made to correspond to the 2nd macro data file respectively as arguments.

When a macro data file is specified by a GUT 10, an AP data base management part 16 accesses its corresponding application from an AP data base 14. When a 1st data file and a 2nd macro data file for executing macro processing by using the 1st data file are specified by the GUI 10 by executing operation for transferring the 1st data file to the 2nd data file, a file starting part 18 transfers the 1st and 2nd data files to the application allowed to correspond to the 2nd data file by relative information respectively as 2nd and 1st arguments.