The path looks quite strange. Neither Classic Version nor Enhanced Edition have this 'game' folder above 'Data'. If you use the mod for EE the file goes to: Divinity Original Sin Enhanced Edition\Data\Public\Shared\Stats\ . For Classic Version as far as I see (I have not modded Classic Version) it goes to Divinity Original Sin\Data\Public\Main\Stats.
These are the structures of the Steam versions. But I think GOG and Steam versions are identical here.
