It starts with 0-599 to 600. Then from 600- 1 199, it is 1200.
For example, weapons, the first 0-599 picture, are worn by the hero.
The last 600- 1 199 pictures were all taken by female characters. .
If your material is a knife, you only need to export these 0-599 pictures and then import what you want to import.
Wil, import twice and get 1 199 pictures.