with open openpyxl how to wirte to the excel sheets

1# import openpyxl module 
2import openpyxl 
3
4# Call a Workbook() function of openpyxl 
5# to create a new blank Workbook object 
6wb = openpyxl.Workbook() 
7
8sheet = wb.active 
9
10# using sheet object's cell() method. 
11c1 = sheet.cell(row = 1, column = 1) 
12
13# writing values to cells 
14c1.value = "ANKIT"
15
16c2 = sheet.cell(row= 1 , column = 2) 
17c2.value = "RAI"
18
19c3 = sheet['A2'] 
20c3.value = "RAHUL"
21
22c4 = sheet['B2'] 
23c4.value = "RAI"
24
25# Anytime you modify the Workbook object 
26# or its sheets and cells, the spreadsheet 
27# file will not be saved until you call 
28# the save() workbook method. 
29wb.save("C:\\Users\\user\\Desktop\\demo.xlsx") 
30