IDOC BUNDLING PACKAGING

Hi all,

am really  confused in between which one to select whether it is bundling or packaging

my scenario is  that from the R/3 system am getting multiple IDOC's  to the PI system (PI 7.4)

and i need to convert it into  a single file ( .CSV file ) consist of 3000 employee details.

please share documents if any one have

Thanks in advance