Originally Posted by Turtle91
Thanks Jon - that is exactly what I was looking for!
I thought I had seen something on MR that someone was making a plugin for Sigil to do all of that automatically...have you heard/seen anything?
 Found it!
Not a plugin, but a standalone.
It's not a plugin. It's Calibre. The standalone is much much harder to use. Use Calibre until the standalone works as well.