diff --git a/SabreTools.DatFiles.Test/FormatsTests.cs b/SabreTools.DatFiles.Test/FormatsTests.cs
index 84aa1986..5a774cb2 100644
--- a/SabreTools.DatFiles.Test/FormatsTests.cs
+++ b/SabreTools.DatFiles.Test/FormatsTests.cs
@@ -1196,6 +1196,13 @@ namespace SabreTools.DatFiles.Test
             Assert.True(actual.SequenceEqual(AllTypes));
         }
 
+        [Fact]
+        public void Missfile_ParseFile_Throws()
+        {
+            var datFile = new Missfile(null);
+            Assert.Throws<NotImplementedException>(() => datFile.ParseFile("path", 0, true));
+        }
+
         #endregion
 
         #region OfflineList
diff --git a/SabreTools.DatFiles/Formats/SabreJSON.cs b/SabreTools.DatFiles/Formats/SabreJSON.cs
index 58e28d43..d578b5a4 100644
--- a/SabreTools.DatFiles/Formats/SabreJSON.cs
+++ b/SabreTools.DatFiles/Formats/SabreJSON.cs
@@ -15,6 +15,7 @@ namespace SabreTools.DatFiles.Formats
     /// <summary>
     /// Represents parsing and writing of a reference SabreDAT JSON
     /// </summary>
+    /// TODO: Transform this into direct serialization and deserialization of the Metadata type
     public sealed class SabreJSON : DatFile
     {
         /// <inheritdoc/>
diff --git a/SabreTools.DatFiles/Formats/SabreXML.cs b/SabreTools.DatFiles/Formats/SabreXML.cs
index bb550502..cd34c26b 100644
--- a/SabreTools.DatFiles/Formats/SabreXML.cs
+++ b/SabreTools.DatFiles/Formats/SabreXML.cs
@@ -12,6 +12,7 @@ namespace SabreTools.DatFiles.Formats
     /// <summary>
     /// Represents parsing and writing of a SabreDAT XML
     /// </summary>
+    /// TODO: Transform this into direct serialization and deserialization of the Metadata type
     public sealed class SabreXML : DatFile
     {
         /// <inheritdoc/>