Oh, there is a whole variety of ways to express this
Eg: Thanks, dear, the (piece of) information you provided proved to be very useful/handy/helpful etc.
Thank you a lot, I apprecaite your giving me such a useful set of informaiton.
Thanks, it was very interesting/useful for me to learn.
Thanks, your information is something really useful for me to know.
Hope it helps.
- For Teachers