To change password is not a big issue you can easily change it by the setting of account. If anyone facing a problem with ms-office and has any query related to this then you can easily take help from this site http://www.msofficetechnicalsupportnumbers.com/blog/fix-xbox-error-code-…
from your profile, go into “My Account Details”. Next to your name on the right is an “Edit” option. When you click there, you will find the option to change your password.