KAPPA utilises general data structures within an
HDS container file, with file extension .sdf. Most of
the examples in this documentation processing is performed on data in
this NDF format generated from within KAPPA.
Generally, you will already have data in `foreign' formats, that is
formats other than the Starlink standard, particularly in the
FITS (Flexible Image Transport System),
IRAF, and FIGARO DST formats.
KAPPA --- Kernel Application Package