hmmmm...I will look again!...I looked in mine...I thought! (ah...in mine I see it says CPT "at your own risk" in the list of files at one place...but indeed it does list CPT as input in 'batch conversion'

(in any case...IF you get XnView, you want version 1.50 minimal version then get the gconvert add-on...else you get WAY too much...like umpty-leven language files)