Python如何将数据框导出到xlsx中的两个选项卡

Question

I want to export dataframe C to an existing excel, saving it in a new tab. I tried:

writer=pd.ExcelWriter(r'H:\test.xlsx', engine='xlsxwriter')
C.to_excel(writer,sheet_name='c') 
writer.save()

(Notice: Excel test is an existing and previously saved Excel, with different tables A, B in tabs a, b, which I want to keep)

This code however deletes the existing excel and creates a new one with only the tab "c". I want to keep the existing tabs "a" and "b".

What is the right way?

ps: I tried suggestion on link "How to save a new sheet in an existing excel file, using Pandas? " as follows:

writer=pd.ExcelWriter(r'H:\C.xlsx', engine='xlsxwriter')
y_pred_all2.to_excel(writer,sheet_name='cc')
writer.save()
writer.close()
from openpyxl import load_workbook
path=r'H:\C.xlsx'
book=load_workbook(path)
writer=pd.ExcelWriter(path, engine='xlsxwriter')
writer.book=book
C.to_excel(writer,sheet_name='returns') 

This gives me error: AttributeError: 'Workbook' object has no attribute 'add_worksheet'

Answer 1

According to this answer this is a limitation in the xlsxwriter engine. The pandas docs show the default for ExcelWriter is to use openpyxl which should be able to do what you are looking for. If you want to be explicit about the engine being used, this should work:

writer = pd.ExcelWriter(path, engine='openpyxl')