Change the files in a variable data document design
Change the master or data source file used in a variable data document design.
A variable data document design combines a master file and a data source file to create VDP output. You may want to change the master file used in the variable data document design without changing the data source file in order to update the design. You may want to change the data source file without changing the master file to update the variable information for a new audience as well.