CALLIO_FILE_ADD2LIST(TZFILE_DES,TRIM(TPFILE%CNAME)//'.des','DES',TPFILE%CMODE,TPDATAFILE=TPFILE,OOLD=.TRUE.)!OOLD=T because the file may already be in the list
!OOLD=T because the file may already be in the list
CALLPRINT_MSG(NVERB_DEBUG,'IO','IO_FILE_OPEN_ll','OPEN_ll for '//TRIM(TPFILE%CNAME)//'.des')