Getting AttributeError 'Workbook' object has no attribute 'add_worksheet' - while writing data frame to excel sheet

Question

I have the following code, and I am trying to write a data frame into an "existing" worksheet of an Excel file (referred here as test.xlsx). Sheet3 is the targeted

Answer 1

You can use openpyxl as the engine when you are creating an instance of pd.ExcelWriter.

import pandas as pd
import openpyxl

df1 = pd.DataFrame({'A':[1, 2, -3],'B':[1,2,6]})
book = openpyxl.load_workbook('examples/ex1.xlsx') #Already existing workbook
writer = pd.ExcelWriter('examples/ex1.xlsx', engine='openpyxl') #Using openpyxl

#Migrating the already existing worksheets to writer
writer.book = book
writer.sheets = {x.title: x for x in book.worksheets}

df1.to_excel(writer, sheet_name='sheet4')
writer.save()

Hope this works for you.