[Issue] normal fomula is change to array formula

[Yoodahun]

Problem

When using Openpyxl to overwrite the new Excel sheet in the existing Excel sheet, the existing normal formula is changed to an array formula and stored.

for example, it is dynamic formula

=FILTER(INDIRECT($B$22&"!"&"$B:$AY"),INDIRECT($B$22&"!"&"$C:$C")=B24)

to

{=FILTER(INDIRECT($B$22&"!"&"$B:$AY"),INDIRECT($B$22&"!"&"$C:$C")=B24)}

I want use normal formula. why normal formula is changed to array formula?

here is my code

 def add_new_sheet_to_excel_file(self, file_path, file_name, sheet_name, file):
        with self.pandas.ExcelWriter(f"{file_path}/{file_name}", mode='a', engine='xlsxwriter', if_sheet_exists='overlay') as writer:
            file.to_excel(writer,sheet_name=sheet_name)

Please, check this issue.