Ability to add user accounts via CSV upload

This is a feature request for the ability to create a number of user accounts via CSV upload. In the Admin 'Users' tool, another screen could be added that accepts a properly formatted CSV file and creates the accounts.
NOTE:
It probably more user friendly and easier to have this manifest as a textarea rather than a file upload. This allows data to be copied and pasted from emails or SIS system output screens directly into the tool rather than having to generate a CSV file first. For users which have a CSV file it is quite easy to open it and copy and paste all the text into the field. It is a bit harder to do it the other way around.