## execute(input_file_name, output_file_name, field_names, field_values) {#str_str_strlist_objectlist} Performs a mail merge operation for a single record. ```python def execute(self, input_file_na......output format is an image (BMP, EMF, EPS, GIF, JPEG, PNG, or WebP)...output format is an image (BMP, EMF, EPS, GIF, JPEG, PNG, or WebP)...