File extraction

Hi,

  Source system is placing files in a zip format. that is customermaster.dat.gz.

   if we mention file name as xx*dat.gz . PI will able to pick ZIP files and how to unzip it for transformation.

  I know about some module will be required to unzip, however with this .gz how PI will unzip it. or it will process to target as zip format. Please suggest.

Thanks,

aman.