https://www.paidmembershipspro.com/add-ons/pmpro-import-users-csv/

Automatically assign memberships and update subscriptions with the Import Users from CSV plugin.

Changelog

* ENHANCEMENT: Refactored entire plugin to be a standalone plugin. This plugin no longer requires the Import Users From CSV plugin to work.

* ENHANCEMENT: Supports importing multiple memberships per user.

* ENHANCEMENT: Importing membership_id 0 will cancel any existing memberships for the user.

* ENHANCEMENT: The password reset email will only send out if the option is selected during import and the user is new. This will never send when updating users or members.

* ENHANCEMENT: Added batch importing for large CSV files. This defaults to 50 imports per iteration, adjust the amount by using the filter `pmprocsv_ajax_import_batch`.

* ENHANCEMENT: General improvements and warnings when importing data that is required but missing from the CSV or importing a level that doesn't exist.

* ENHANCEMENT: Updated the CSV sample file to have newer values.

* REFACTOR: Improved logic around creating orders during import. See documentation for full details.

* BUG FIX: Fixed an issue where empty meta keys were being imported as "". This now skips and does not update the meta key if the value is blank.