Send e-mail with formulas: Demo

https://radiant-bastion-1152.herokuapp.com/i3pqpufosc

Many people want to send e-mail with a spreadsheet. Requests get posted on spreadsheet forums all the time. The same question is posted again and again, week after week. So I decided to create some formulas for it.

Not sure is a big pain point, not sure people would pay, but happy to finish it off if anyone can think of a way to cover costs.