파이썬 질문이요ㅠㅠ

import pandas as pd
from konlpy.tag import Twitter
import openpyxl
 
excel_test = pd.read_excel(r'C/data.xlsx')
twt = Twitter()
 
et=(excel_test.loc[:,'test1'])
 
for i in et:
    tagging = twt.pos(i)
 
 
df = pd.DataFrame(tagging)
df.to_excel('test.xlsx')