I am about to reinstalling windows on my main computer. I would like to have tixati setup the same way with all my statistics and settings. Is there a folder I can copy and move over after I finished installing windows?

"Settings" > "Import/Export" > "Export Configuration To File"

Import that config file on the new computer. Before you uninstall Tixati or delete any torrents on your old computer, make sure everything is there.

You can also backup individual torrents by clicking on one and going to "Options" > "Meta-Info" > "Save .torrent File"

This will transfer the transfer statistics and torrents as well?

I think it should but I can't confirm it. Maybe someone else reading this can? You can also backup the Tixati folder. Look in your AppData folder. Sorry, I don't know the exact location because I'm on Linux.

Windows: C:\Users\USERNAME\AppData\something\Tixati\
Linux: $HOME/.tixati/

I would do all of the following just so nothing is missed by accident.

1) do the export configuration backup
2) save/export the torrents
3) make a backup of the Tixati folder (and before you install Tixati again, put the folder back where you found it)