diff --git a/blender/avatar_main_output.py b/blender/avatar_main_output.py
index d04cdea..eeab5a7 100644
--- a/blender/avatar_main_output.py
+++ b/blender/avatar_main_output.py
@@ -42,7 +42,7 @@ class AvatarMainOutput(blender_node.ObjectOps):
             "multiline": False,
             "default": "out"
         }),
-        "model_type": (["GLB", "GLTF_EMBEDDED"],),
+        "model_type": (["AVA","GLB", "GLTF_EMBEDDED"],),
         "write_mode": (["Overwrite", "Increment"],),
 
         "SHAPE_FLOW": ("SHAPE_FLOW",),
diff --git a/blender/mesh_utils.py b/blender/mesh_utils.py
index 9b76e56..7e972a5 100644
--- a/blender/mesh_utils.py
+++ b/blender/mesh_utils.py
@@ -210,18 +210,29 @@ def export_gltf(output_dir, bpy_objects, filename, model_type, write_mode, metad
     for obj in bpy_objects:
         obj.select_set(True)
 
-    filepath = output_dir + "/" + filename + '.' + ("glb" if model_type == "GLB" else "gltf")
+    def get_file_extension(model_type):
+        if model_type == "GLB":
+            return ".glb"
+        elif model_type == "GLTF_EMBEDDED":
+            return ".gltf"
+        elif model_type == "GLTF_SEPARATE":
+            return ".gltf"
+        elif model_type == "AVA":
+            return ".ava"
+
+    ext = get_file_extension(model_type)
+    filepath = output_dir + "/" + filename + '.' + ext
 
     if write_mode == "Increment":
         count = 0
         # while file exists, increment count
-        while os.path.exists(output_dir + "/" + filename + '_' + str(count) + '.' + ("glb" if model_type == "GLB" else "gltf")):
+        while os.path.exists(output_dir + "/" + filename + '_' + str(count) + '.' + ext):
             count += 1
 
-        filepath = output_dir + "/" + filename + '_' + str(count) + '.' + ("glb" if model_type == "GLB" else "gltf")
+        filepath = output_dir + "/" + filename + '_' + str(count) + '.' + ext
     
     with bpy.context.temp_override(**override):
-        bpy.ops.export_scene.gltf(filepath=filepath, export_format=model_type, use_selection=True, export_extras=True)
+        bpy.ops.export_scene.gltf(filepath=filepath, export_format="GLB" if model_type == "AVA" else model_type, use_selection=True, export_extras=True)
         # print(filepath)
 
     return filepath
\ No newline at end of file