To re-size using Nifskope follow these simple guidelines.
1. Open up Winrar.
2. Find the animals file that you want to re-size.
3. Double click it.
4. Double click on the folder "entities".
5. Double click the folder "animal".
6. Double click the file with the animals name.
7. Find the files that have an icon with 3-D shapes.
8. Do not click on the file that ends with "emotes".
9. Make sure you have Nifskope.
10. After double clicking the Nif file, the model will open up in Nifskope.
11. Right cick on the animals model.
12. A small section will open with options.
13. Move the cursor over Transform.
14. Another section will appear.
15. Click "Scale Verticise".
16. A box will open with the letters X, Y, and Z.
17. All these numbers must be the same, so to make them smaller write "0.6890", or something like that as long as it starts with 0, and to enlargen write "1.6000".
18. Sometimes making an animal to small or to large will crash your game so be careful.
19. Go to the top of the screen andit says "Save As", click that and then it will open up another tab and say "Save", press ok and close the Nif file andon Winrar it will say this file has been change/ modified, save moderation, Click yes.
20. Test your re-size ingame an have fun re-sizeing.