Export dataframe to xlsx - Error "zipfile.BadZipFile: File is not a zip file"

[Baggio]

Sure

Traceback (most recent call last):
  File "<input>", line 83, in <module>
  File "<input>", line 46, in append_df_to_excel
  File "C:\Users\20180043\AppData\Local\Programs\Python\Python39\lib\site-packages\openpyxl\reader\excel.py", line 315, in load_workbook
    reader = ExcelReader(filename, read_only, keep_vba,
  File "C:\Users\20180043\AppData\Local\Programs\Python\Python39\lib\site-packages\openpyxl\reader\excel.py", line 124, in __init__
    self.archive = _validate_archive(fn)
  File "C:\Users\20180043\AppData\Local\Programs\Python\Python39\lib\site-packages\openpyxl\reader\excel.py", line 96, in _validate_archive
    archive = ZipFile(filename, 'r')
  File "C:\Users\20180043\AppData\Local\Programs\Python\Python39\lib\zipfile.py", line 1257, in __init__
    self._RealGetContents()
  File "C:\Users\20180043\AppData\Local\Programs\Python\Python39\lib\zipfile.py", line 1324, in _RealGetContents
    raise BadZipFile("File is not a zip file")
zipfile.BadZipFile: File is not a zip file