With the aim of comparing the results of a data reduction performed with BoA with those obtained with existing packages (NIC, MOPSI), a procedure similar to the one described in Section 4.1 was written to convert an MB-FITS file to a FITS file with the same format as for MAMBO-ABBA data. These two modules were tested by comparing the results of the reduction performed with NIC or MOPSI on the original data file on one hand, and on the file converted to the MB-FITS format, then back to the MAMBO format on the other hand. These tests were successful (no difference can be seen in the results obtained with and without conversions) for the following software/observation type combinations: