Adding new users from an excel spreadsheet

Hello Community. I'm a new Appian User.

I'm trying to build a process model to add new users from an excel spreadsheet and appoint them to groups. However, I'm facing a problem.

I'm using "Parse Excel Spreadsheet to CDT" Smart Service to get the information from excel and send to a CDT. Then, I tried to create a new user using this CDT, but I don't know how loop "Create User" Smart Service in order to process all new users. Until now, "Create User" has returned to me as if my array were a single row.

Anyone can help me? Or perhaps, provide another approach for this problem. Thanks in advance.