fix ref

@@ -467,7 +467,7 @@ class BSWorkbook(Workbook):
             fill_row = set()
             fill_row = set()
 
 
             # 添加筛选
             # 添加筛选
-            new_ws.auto_filter.ref = 'A1:{0}{1}'.format(get_column_letter(new_ws.max_column), new_ws.max_row)
+            new_ws.auto_filter.ref = 'A1:{0}{1}'.format(get_column_letter(new_ws.max_column-2), new_ws.max_row)
 
 
             for rows in new_ws.iter_rows(min_row=2):
             for rows in new_ws.iter_rows(min_row=2):
                 length = len(rows)
                 length = len(rows)