I have not encountered every coil made but i would carefully scape the ends

(be carefull , if the inside wrap wires (start of wrap) break and get too short you will have to scrap or rewrap or get another fan but you can get these for next to nothing from computer repair shops bad power supplys or radio shack or new egg etc.)

and then check continuity with an ohm meter you will probably find continuity across two of them , that will be one set of coils then check the other two and they will probably be your other set then prepare component leads as instructed on vid to prepare the extra post and you are set good luck.