is there any way to import multiple users into the site via

hi is there any way to import multiple users into the site via a csv file?

I saw one of the plugins (batch create) which looked ideal, but required a multi site install which is what i dont have. the add new users plugin only does a certain amount every time - it would be good if the site also didn't email them too as the client wants to send out an email saying login in here using your email address and the password of...

I have to import about 700 people and doing it manually will be very time consuming

thanks in advance

rob