def domagicmag(file, Recs):
    """
    converts a magic record back into the SIO mag format
    """
    for rec in Recs:
        type = '.0'
        meths = []
        tmp = rec['magic_method_codes'].split(':')
        for meth in tmp:
            meths.append(meth.strip())
        if 'LT-T-I' in meths:
            type = '.1'
        if 'LT-PTRM-I' in meths:
            type = '.2'
        if 'LT-PTRM-MD' in meths:
            type = '.3'
        treatment = float(rec['treatment_temp']) - 273
        tr = '%i' % treatment + type
        inten = '%8.7e ' % (float(rec['measurement_magn_moment']) * 1000.0)
        outstring = rec['er_specimen_name'] + ' ' + tr + ' ' + rec[
            'measurement_csd'] + ' ' + inten + ' ' + rec['measurement_dec'
            ] + ' ' + rec['measurement_inc'] + '\n'
        file.write(outstring)
