The program SEEF is a Fortran IV computer code for the extraction of a
bsolute cross sections of compound nucleus reactions. When the evapora
tion residue is fed by its parents, only cumulative cross sections wil
l be obtained from off-line gamma ray measurements. But, if one has th
e parent excitation function (experimental or calculated), this code w
ill make it possible to determine absolute cross sections of any exit
channel.