The site I show in this video is: http://stackoverflow.com/questions/15...
An Upwork programmer Ivan Kovalenko
( https://www.upwork.com/freelancers/~0... ) wrote a perfect Ruby script for this, and it works beautifully: See the exact script in one of my comments below, because, YouTube says "Brackets aren't allowed in your description."
On this page of the site you can watch the video online Text based Hex String to Binary File Program Help Request with a duration of hours minute second in good quality, which was uploaded by the user Forgotten Machines 06 December 2015, share the link with friends and acquaintances, this video has already been watched 1,031 times on youtube and it was liked by 2 viewers. Enjoy your viewing!