diff --git a/src/modelio.cs b/src/modelio.cs
index fc61d66d6fa6..e4a8494abb3a 100644
--- a/src/modelio.cs
+++ b/src/modelio.cs
@@ -3249,4 +3249,12 @@ interface MDLAnimatedQuaternion {
 		nuint _GetDoubleQuaternionArray (IntPtr valuesArray, nuint maxCount);
 	}
 
+	[TV (18, 0), Mac (15, 0), iOS (18, 0), MacCatalyst (18, 0)]
+	[DisableDefaultCtor]
+	[BaseType (typeof (NSObject))]
+	interface MDLUtility {
+		[Static]
+		[Export ("convertToUSDZ:writeToURL:")]
+		void ConvertToUsdz (NSUrl inputUrl, NSUrl outputUrl);
+	}
 }
diff --git a/tests/cecil-tests/Documentation.KnownFailures.txt b/tests/cecil-tests/Documentation.KnownFailures.txt
index 154ff1611f76..f6693a792f18 100644
--- a/tests/cecil-tests/Documentation.KnownFailures.txt
+++ b/tests/cecil-tests/Documentation.KnownFailures.txt
@@ -42348,6 +42348,7 @@ M:ModelIO.MDLTransformTranslateOp.GetNMatrix4(System.Double)
 M:ModelIO.MDLTransformTranslateOp.GetNMatrix4d(System.Double)
 M:ModelIO.MDLUrlTexture.#ctor(Foundation.NSData,System.Boolean,System.String,CoreGraphics.NVector2i,System.IntPtr,System.UIntPtr,ModelIO.MDLTextureChannelEncoding,System.Boolean)
 M:ModelIO.MDLUrlTexture.#ctor(Foundation.NSUrl,System.String)
+M:ModelIO.MDLUtility.ConvertToUsdz(Foundation.NSUrl,Foundation.NSUrl)
 M:ModelIO.MDLVertexAttribute.#ctor(System.String,ModelIO.MDLVertexFormat,System.UIntPtr,System.UIntPtr)
 M:ModelIO.MDLVertexAttribute.Copy(Foundation.NSZone)
 M:ModelIO.MDLVertexBufferLayout.#ctor(System.UIntPtr)
@@ -81424,6 +81425,7 @@ T:ModelIO.MDLTransformRotateZOp
 T:ModelIO.MDLTransformScaleOp
 T:ModelIO.MDLTransformStack
 T:ModelIO.MDLTransformTranslateOp
+T:ModelIO.MDLUtility
 T:ModelIO.MDLVertexFormatExtensions
 T:ModelIO.MDLVoxelIndexExtent
 T:NaturalLanguage.NLContextualEmbedding
diff --git a/tests/xtro-sharpie/api-annotations-dotnet/MacCatalyst-ModelIO.todo b/tests/xtro-sharpie/api-annotations-dotnet/MacCatalyst-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/api-annotations-dotnet/MacCatalyst-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound
diff --git a/tests/xtro-sharpie/api-annotations-dotnet/iOS-ModelIO.todo b/tests/xtro-sharpie/api-annotations-dotnet/iOS-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/api-annotations-dotnet/iOS-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound
diff --git a/tests/xtro-sharpie/api-annotations-dotnet/macOS-ModelIO.todo b/tests/xtro-sharpie/api-annotations-dotnet/macOS-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/api-annotations-dotnet/macOS-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound
diff --git a/tests/xtro-sharpie/api-annotations-dotnet/tvOS-ModelIO.todo b/tests/xtro-sharpie/api-annotations-dotnet/tvOS-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/api-annotations-dotnet/tvOS-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound
diff --git a/tests/xtro-sharpie/iOS-ModelIO.todo b/tests/xtro-sharpie/iOS-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/iOS-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound
diff --git a/tests/xtro-sharpie/macOS-ModelIO.todo b/tests/xtro-sharpie/macOS-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/macOS-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound
diff --git a/tests/xtro-sharpie/tvOS-ModelIO.todo b/tests/xtro-sharpie/tvOS-ModelIO.todo
deleted file mode 100644
index 36b88c86cfbd..000000000000
--- a/tests/xtro-sharpie/tvOS-ModelIO.todo
+++ /dev/null
@@ -1,2 +0,0 @@
-!missing-selector! +MDLUtility::convertToUSDZ:writeToURL: not bound
-!missing-type! MDLUtility not bound