AFAIK you can export animations through FBX too.
The animations are stored in separate GR2 files from the main one; eg. for Arhu the character itself is in NPC_Arhu.GR2.
The animations are NPC_Arhu\NPC_Arhu_Attack_C_01.GR2, NPC_Arhu\NPC_Arhu_Cast_Self_01.GR2, etc.