[Tutor] class data

[alan.gauld@bt.com]

> > >       f.write(`s.name`,'\t',`s.phone`,'\t',s.email`)
> 
> Oops, try 
>           f.write(`s.name` + '\t' + `s.phone` + '\t' + s.email`)
Or even:
            f.write(`s.name` + '\t' + `s.phone` + '\t' + `s.email`)
                                                         ^missing

Alan G