How to make users import into Liferay

Hello,
    It is often need to imoprt some users into liferay automatically. This post I'll show you how it can be done.
   

Change password at first login

Hello,
    In Liferay you can find change password page may appear when user logged in for first time. If you don't need that user changed his password, this may require when you made import of users manually, check this post.