The ADF program may generate several output / result files, along with the standard output file. The most important one is TAPE21 (.t21 file), the general result file. TAPE21 contains relevant information about the outcome of the calculation. You may want to store this file somewhere under an appropriate name, for future usage. The meaning of any other files that are produced are explained later in this User's Guide.
We will start now with a discussion of the input file for ADF.
