What I did was I had a bf over gf mod i downloaded so I copied the games images folder from the assets so you can change anything back if you ever need to, then I copied the sprite sheets and the .Xml (the xml is necessary for the animations to work) from the mod and pasted it into the games images assets and clicked “replace” (that’s why you need too copy the original assets)
I know the video quality is terrible this was the only way I could do it so hopefully it helps at all
Source
What I did was I had a bf over gf mod i downloaded so I copied the games images folder from the assets so you can change anything back if you ever need to, then I copied the sprite sheets and the .Xml (the xml is necessary for the animations to work) from the mod and pasted it into the games images assets and clicked "replace" (that's why you need too copy the original assets)
I know the video quality is terrible this was the only way I could do it so hopefully it helps at all
Im the guy who asked you for help on reddit, thank you!
Mine shows Error 79 – Incorrect file type or format
that is a very interesting back round
I will sub to you if you make a video on how to get the version of fnf you have