To solve DEA problems, we need LP solvers. Unfortunately, SPSS does not have LP solvers. To start with, try R language, LINDO, Matlab, and AMPL. For simple DEA problems, you can also use Excel solver.
No but you can download DEAP program easily from internet. It is very easy to use and they availabe the DEAP manual. You can also use excel (solver) using the classic programming.