update xls file using python

1"""
2Enter the following command `sudo pip install openpyxl
3if this doesn't work download openpyxl zip file from 
4https://pypi.org/project/openpyxl/
5after that extract it and then open the folder in terminal and write 
6`sudo python setup.py install`
7
8""""
9import openpyxl
10try:
11    path = "pathOfxlsFile/filename.xls"
12    wb_obj = openpyxl.load_workbook(path.strip())
13    # from the active attribute
14    sheet_obj = wb_obj.active
15    # get max column count
16    max_column = sheet_obj.max_column
17    max_row = sheet_obj.max_row
18    print(f"\n\n coulumns {max_column}  \n\n")
19    print(f"\n\n rows{max_row}  \n\n")
20    for j in range(1,max_row):
21        #count starts form 1, don't use 0 
22    	cellThatIsToBeChanged = sheet_obj.cell(row=j, column=1)
23       	cellThatIsToBeChanged.value = 'new modified value'
24        wb_obj.save('fileName.xlsx')
25    except Exception as e:
26        print(e)