If everything seems OK, one usually saves the results of the fit. One must first open an output file (25) ; in this example the file is created by means of the last argument ``NEW'' ; to open an existing file, omit it. Then go back to the true spectrum, not the residuals, by exchanging "memories" R and T by the SWAP command (26), and copy the contents of the R "memory" onto the output file by the WRITE command (27). The limits of the plot, the baseline, the Gaussian parameters as well as the list of observations used to obtain this final result are automatically saved in the same operation.