Select first two columns and adjust their width. (TIP: by holding control click and selecting columns lets you select multiple columns at a time, and, having selected multiple columns lets you adjust same width.) Dedicate first column for account of which password you want to remember, and, second one for password.
Now press Alt+F key and select save as workbook save dialogue box appears.
In the left bottom of dialogue box hit tools button and select general options.
Selecting general options gives you password dialogue box which lets you secure whole your data (passwords) securely.
You will see two passwords one is to open another one is to modify. here is a little trick to avoid you to change your excel sheet coincidently. Enter same password in both the fields, confirm password and hit okay and then save. At the time of viewing you will be asked to enter two passwords enter just one and hit read only just for viewing only. if you want to modify you need to enter both.
This will be the only password you need to remember.and it will be your own simple easy password keeper. Share with friends and for questions and queries please ask for help.