Download the compiled version here
. Then download and install GTK# for .NET
. Then extract/unzip the Vega64SoftPowerTableEditor folder. Open it and click on the Vega64SoftPowerTableEditor application. If the app opens, you're good to go(lucky you!).
However, if the app doesn't open(which it sometimes will not without a little help), delete everything from the Vega64SoftPowerTableEditor folder except the Vega64SoftPowerTableEditor application and gtk-sharp.dll(and maybe the README, but you can delete that too if you don't want/need it). You're deleting everything else because it's all a bunch of useless crap that has no business being there in the first place. And the app won't open/work because something else actually needs to be there for it to open/work(sometimes, but not always, not sure what's up with that).
So let's fix that by adding what needs to be there so it does open/work. Go to C:\Program Files (x86)\GtkSharp\2.12\bin and copy zlib1.dll, then paste that in the Vega64SoftPowerTableEditor folder. Then try clicking the Vega64SoftPowerTableEditor application and watch how it now magically opens and works perfectly.
Works just fine. If you know how to work it.
EDIT: I see what you meant by that now. The Vega FE 16GB GFX clocks thing. Not good. Funny thing is the Vega FE 8GB GFX clocks are right. Why is that I wonder?
You can also use the PPTable editor in OverdriveNTool with a Vega FE 16GB .reg file and the clocks are correct with that.