import pandas as pd
from openpyxl import load_workbook
 
FilePath = "your excel path"
ExcelWorkbook = load_workbook(FilePath)
writer = pd.ExcelWriter(FilePath, engine = 'openpyxl')
writer.book = ExcelWorkbook
df.to_excel(writer, sheet_name = 'your sheet name')
writer.save()
writer.close()