fprintf(file, "#%d: id %d title %s cat %d type %d rtype %d dvalue %d opt %d pos %d len %d\nminv %s maxv %s ovals %s fdesc %s paramid %d paramv %s parent %d parentval %s funit %s opts %d\n\n",
                   i, f->sell_form_id, f->sell_form_title.c_str(), f->sell_form_cat, f->sell_form_type, f->sell_form_res_type, f->sell_form_def_value, f->sell_form_opt, f->sell_form_pos, f->sell_form_length,
                   f->sell_min_value.c_str(), f->sell_max_value.c_str(), f->sell_form_opts_values.c_str(), f->sell_form_field_desc.c_str(), f->sell_form_param_id, f->sell_form_param_values.c_str(),
                   f->sell_form_parent_id, f->sell_form_parent_value.c_str(), f->sell_form_unit.c_str(), f->sell_form_options);