使用openpyxl编辑具有外部数据的现有XLSM文件

Question

如果我编辑没有外部查询的XLSM文件，我的代码可以正常工作。如果我尝试编辑一个具有外部链接的文件，则链接会被断开/删除，并且会出现以下错误：

<logFileName>error205520_01.xml</logFileName>
-<removedParts summary="Following is a list of removed parts:">
<removedPart>Removed Part: External data range.</removedPart>
</removedParts>

我的代码如下：

from openpyxl import load_workbook
import pandas as pd
df_new = pd.DataFrame({'Col_C': [9, 10, 11, 12]})
wb = load_workbook('2020data.xlsm', keep_vba=True)

ws = wb['testSheet']

for index, row in df_new.iterrows():
    cell = 'C%d'  % (index + 2)
    ws[cell] = row[0]

wb.save('2020data.xlsm')