Easily import users from a CSV or XML file. The user import add-on for WP All Import makes it easy to import users from any XML or CSV file. The user import add-on can import to the “meta” – which means it has full support for 3rd party themes and plugins that store extra user data. Need to import to a membership plugin and set the membership level? Or import any other user meta data, not just standard fields on the Edit User screen in WordPress? The user import add-on for WP All Import has you covered.

Demo: http://www.wpallimport.com/add-ons/user-import/