In this article I’ll show you could Import new user account to Office 365 using a .CSV file which will save you a lot of time.
To do this the only thing you need Is access to the portal as a Global Administrator and a .CSV file.
To get started, Open the Portal -> Users -> Portal -> Users -> Import multiple users
In the next step you could download a sample file with details and one without details
Below you will see the .CSV without the data and with the data, Fill In the details and save the file.
Once done, use the browse button and u
Select If you want to allow login or not.