How do I set a task to be updated to do it again once it is done

I cannot get recurring subsequent to work.  If I haven't done it on the first day the task appears twice on the second day.

Is a one off task a thought.  Not sure which category under create event to use for a one off task.

Alos please tell me the name of the file with the data in it.  I have wieldy on two computers and want to put the working file on the cloud in Dropbox.