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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def save(self, file_tag='2016', add_header='N'):
 """ save table to folder in appropriate files NOTE - ONLY APPEND AT THIS STAGE - THEN USE DATABASE """

        fname = self.get_filename(file_tag)
        with open(fname, 'a') as f:
            if add_header == 'Y':
                f.write(self.format_hdr())
                
            for e in self.table: 
                    f.write(e.format_csv())