Anyone got a script for Blender to view animations from .otra files? But if it's not that, which file have animations?

ALC.zip

otra should be but you'll need the skeleton first. And before that the bone names:

(ignore the numbers in the last column, they are wrong)

0 *rootBone* 212
1 *nullBone* 66
2 *RootNode* 66
3 *Camera_Aim* 78
4 *Camera_Body* 95
5 *Camera_Mgr* 66
6 *Root* 95
7 *Heel* 82
8 *Tip* 72
9 *Camera_Root* 0
10 *Mesh_Root* 82
11 *ALC_METAL* 82
12 *ALC_BODY* 69
13 *ALC_HAIR_BACK04* 66
14 *ALC_HAIR_BACK03* 67
15 *ALC_HAIR_BACK02* 67
16 *ALC_HAIR_BACK01* 67
17 *ALC_HAIR_FRONT04* 67
18 *ALC_HAIR_FRONT03* 78
19 *ALC_HAIR_FRONT02* 78
20 *ALC_HAIR_FRONT01* 78
21 *ALC_CAP* 78
22 *ALC_BRA* 95
23 *ALC_BELT* 95
24 *ALC_SHOSE01* 66
25 *ALC_SHOSE02* 83
26 *ALC_COAT_BACK* 83
27 *ALC_COAT_FRONT* 66
28 *ALC_PANTS* 82
29 *ALC_FACE* 65
30 *ALC_TONGUE* 70
31 *ALC_LOWER_JAW* 78
32 *ALC_UPPER_JAW* 95
33 *ALC_EYES* 95
34 *ALC_EYESHADOW* 69
35 *ALC_EYELASH* 65
36 *ALC_EYEBLOWS* 76
37 *C_Base* 76
38 *Flag_Mgr* 66
39 *C_Hips* 95
40 *C_Hips_Attach* 72
41 *L_Hip* 116
42 *R_Hip* 95
43 *L_Leg1* 95
44 *L_Leg1Helper* 76
45 *L_Knee* 108
46 *L_Leg2* 75
47 *L_Leg2Helper* 76
48 *L_Ankle* 108
49 *L_Foot* 110
50 *L_Foot_Attach* 70
51 *L_Toe* 116
52 *R_Leg1* 95
53 *R_Leg1Helper* 76
54 *R_Knee* 108
55 *R_Leg2* 75
56 *R_Leg2Helper* 76
57 *R_Ankle* 108
58 *R_Foot* 110
59 *R_Foot_Attach* 70
60 *R_Toe* 116
61 *C_Spine1* 95
62 *C_Spine2* 105
63 *C_Chest* 105
64 *R_Breast_Sec_Root* 104
65 *R_Breast_Tip_Sec* 82
66 *L_Breast_Sec_Root* 95
67 *L_Breast_Tip_Sec* 82
68 *C_Neck* 95
69 *C_Head* 78
70 *C_HairB1_Sec_Root* 72
71 *C_HairB1_Tip_Sec* 82
72 *C_HairUB1_Sec_Root* 95
73 *C_HairUB1_Tip_Sec* 82
74 *F_Hair01_Sec_Root* 95
75 *F_Hair02_Tip_Sec* 82
76 *L_Hair01_Sec_Root* 95
77 *L_Hair02_Tip_Sec* 82
78 *R_Hair01Sec_Root* 95
79 *R_Hair02_Tip_Sec* 82
80 *R_HairB1_Sec_Root* 95
81 *R_HairB1_Tip_Sec* 82
82 *L_HairB1_Sec_Root* 95
83 *L_HairB1_Tip_Sec* 82
84 *C_Head_Attach* 95
85 *C_FaceRoot* 116
86 *C_Jaw_FbD* 82
87 *C_Tongue_1_FbD* 95
88 *C_Tongue_2_FbD* 95
89 *C_Tongue_3_FbD* 95
90 *C_Tongue_4_FbD* 95
91 *C_Tongue_End_FbD* 95
92 *C_Chin_FbD* 95
93 *C_JawHalf_FbD* 95
94 *L_LaughLine_Lower_FbD* 95
95 *R_LaughLine_Lower_FbD* 95
96 *R_Mouth_Lower_1_FbD* 95
97 *L_Mouth_Lower_1_FbD* 95
98 *L_Mouth_Lower_2_FbD* 95
99 *R_Mouth_Lower_2_FbD* 95
100 *C_Mouth_Lower_FbD* 95
101 *C_Tooth_Lower_FbD* 95
102 *L_Cheek_Lower_FbD* 95
103 *R_Cheek_Lower_FbD* 95
104 *L_MouthCorner_FbD* 95
105 *R_MouthCorner_FbD* 95
106 *L_Mouth_Upper_1_FbD* 95
107 *L_Mouth_Upper_2_FbD* 95
108 *R_Mouth_Upper_1_FbD* 95
109 *R_Mouth_Upper_2_FbD* 95
110 *R_EyePos_FbU* 95
111 *R_Eye_FbU* 95
112 *R_Pupil_FbU* 95
113 *L_EyePos_FbU* 95
114 *L_Eye_FbU* 95
115 *L_Pupil_FbU* 95
116 *C_Tooth_Upper_FbD* 95
117 *L_EyeCorner_FbU* 95
118 *R_EyeCorner_FbU* 95
119 *R_Eyelid_Lower_FbU* 95
120 *R_Eyelash_Lower_FbU* 95
121 *L_Eyelid_Lower_FbU* 95
122 *L_Eyelash_Lower_FbU* 95
123 *R_Eyelid_Upper_FbU* 95
124 *R_Eyelash_Upper_FbU* 95
125 *L_Eyelid_Upper_FbU* 95
126 *L_Eyelash_Upper_FbU* 95
127 *R_EyeSocket_FbU* 95
128 *L_EyeSocket_FbU* 95
129 *R_Cheek_Upper_FbU* 95
130 *L_Cheek_Upper_FbU* 95
131 *R_LaughLine_Upper_FbD* 95
132 *L_LaughLine_Upper_FbD* 95
133 *L_Eyebrow_1_FbU* 95
134 *L_EyebrowHair_1_FbU* 95
135 *L_Eyebrow_2_FbU* 95
136 *L_EyebrowHair_2_FbU* 95
137 *L_EyebrowHair_3_FbU* 95
138 *L_Eyebrow_3_FbU* 95
139 *R_Eyebrow_1_FbU* 95
140 *R_EyebrowHair_1_FbU* 95
141 *R_Eyebrow_2_FbU* 95
142 *R_EyebrowHair_2_FbU* 95
143 *R_EyebrowHair_3_FbU* 95
144 *R_Eyebrow_3_FbU* 95
145 *C_Forehead_FbU* 95
146 *C_Mouth_Upper_FbD* 95
147 *R_Nose_FbU* 95
148 *L_Nose_FbU* 95
149 *R_Clavicle* 95
150 *R_Shoulder2* 105
151 *R_Shoulder* 100
152 *R_Arm1* 108
153 *R_Arm1Helper* 65
154 *R_Elbow* 108
155 *R_Arm2* 108
156 *R_Arm2Helper* 65
157 *R_Wrist* 108
158 *R_Hand* 114
159 *R_Hand_Attach* 72
160 *R_Pinky1* 116
161 *R_Pinky2* 110
162 *R_Pinky3* 110
163 *R_Pinky4* 110
164 *R_Ring1* 110
165 *R_Ring2* 105
166 *R_Ring3* 105
167 *R_Ring4* 105
168 *R_Middle1* 105
169 *R_Middle2* 100
170 *R_Middle3* 100
171 *R_Middle4* 100
172 *R_Index1* 100
173 *R_Index2* 100
174 *R_Index3* 100
175 *R_Index4* 100
176 *R_Thumb1* 100
177 *R_Thumb2* 117
178 *R_Thumb3* 117
179 *L_Clavicle* 117
180 *L_Shoulder2* 105
181 *L_Shoulder* 100
182 *L_Arm1* 108
183 *L_Arm1Helper* 65
184 *L_Elbow* 108
185 *L_Arm2* 108
186 *L_Arm2Helper* 65
187 *L_Wrist* 108
188 *L_Hand* 114
189 *L_Hand_Attach* 72
190 *L_Pinky1* 116
191 *L_Pinky2* 110
192 *L_Pinky3* 110
193 *L_Pinky4* 110
194 *L_Ring1* 110
195 *L_Ring2* 105
196 *L_Ring3* 105
197 *L_Ring4* 105
198 *L_Middle1* 105
199 *L_Middle2* 100
200 *L_Middle3* 100
201 *L_Middle4* 100
202 *L_Index1* 100
203 *L_Index2* 100
204 *L_Index3* 100
205 *L_Index4* 100
206 *L_Thumb1* 100
207 *L_Thumb2* 117
208 *L_Thumb3* 117
209 *End_Position* 117
210 *Hip_Follow* 116
211 *Cam_Position* 108

Lots of bones. I guess no one will take that hassle. You'll need to upload a sample with less bones, less hair.