https://www.youtube.com/watch?v=Wc-WQrvw2fE

Create a users.csv file to import from with the first line:

GivenName,Surname,Name,DisplayName,SamAccountName

https://sourceforge.net/projects/adbulkadmin/

This is a bulk administration tool for an AD administrator to administer a large number of Active Directory users.

You can use it to:

• Check a large number of users
• Create a large number of users
• Reset a large number of users' passwords
• Enable or disable a large number of users
• Set a large number of users' properties
• Check groups
• Add users to group or remove users from group