Dominique, I have put a small fortran file into
/pub/profile_data.transfer/ldread.f
to be included in the software directory.  This will be of use
to anyone reading ufiles on the Livermore Cray machines.  It
circumvents the problem of having different formats in the 
DIIID and TFTR ufiles.  The comments below explain more fully... 
      subroutine ldread(nun,dum,n)
c**********************************************************************
c*****ldread does a list-directed read for exponent formatted         *
c*****numbers, allowing whitespace or a minus for a separator.        *
c*****last revision:  1/31/95, s.e.attenberger, ornl.                 *
c*****input:                                                          *
c*****nun   -unit number for input                                    *
c*****output:                                                         *
c*****dum   -array of real values                                     *
c*****n     -number of real values to read                            *
c*****Note:  2d ufiles from DIIID use a (6e12.4) format, whereas      *
c*****2d ufiles from tftr use a (1x,6e13.6) format.  In the latter    *
c*****case, there is no whitespace before negative numbers,           *
c*****which prevents list directed reads for the cf77 compiler.       *
c*****This routine reads a line of n numbers in (Ax,BeC.E) format,    *
c*****where A,B,C, and D are arbitrary numbers.                       *
c********************************************************************** 
  Stan Attenberger