Add users in mass

[Quantnet]

I'm looking for a way to add around NEW 300 users without manually add each one of them under VB Add New User function

Basically, we have a list of those members in excel file with only several fields (username, password, date of birth, email)

Those members will be deleted after 1 month.

If on the list, there is a field indicates which usergroup the members should go to, how should I import them

Do you know of any mod that give me an interface to do this instead of messing with Impex ?