Adding a sheet to an existing excel worksheet without deleting other sheet

Question

I am trying to add a sheet to the excel file: ex.xls and whenever I do it deletes all the previously made sheets.

How do I add a sheet to this excel file without deleting the other sheets?

Here is my code to create a sheet:

import xlwt
import xlrd

wb = Workbook()
Sheet1 = wb.add_sheet('Sheet1')
wb.save('ex.xls')

Answer 1

I believe this is the only way to do what you want:

import xlrd, xlwt
from xlutils.copy import copy as xl_copy

# open existing workbook
rb = xlrd.open_workbook('ex.xls', formatting_info=True)
# make a copy of it
wb = xl_copy(rb)
# add sheet to workbook with existing sheets
Sheet1 = wb.add_sheet('Sheet1')
wb.save('ex.xls')