With User Registration Import Users add-on You can easily import users on your WordPress site. Just select the form to which you want to import the user. Then, you just need to choose a user data file which is in CSV format. Whether you want to transfer users from one site to another or add users from an Email List, you need to import users. The Import Users add-on allows you to import users in a few clicks. Just select the user data CSV file and import users. You need to install the WPEverest User Registration plugin, before installing this add-on.