I've heard about that software, too.
The first thing you'll want to do is turn off your pc. The more you use it, the
better chance the data that was in your file will be overwritten.
After that, find another pc and start looking for data recovery programs (or
data recovery services) on a different pc.
A long time ago, the Norton Utilities had this kind of program. But the last
version I used was way before Windows came out.
Good luck.
