Oh didn't see the post above I will try that then.
But how would I then be able to update the mod I published on steam? More over I actually see no option to update a mod to a newer version.
Though when I tried it did seem to simply overwrite my old file so I suppose it does work it just doesn't give me any warning or option.
Also Cromcrom i assume it is this file: steamapps\common\Divinity Original Sin 2\Data\Public\[YourMod]Package