diff --git a/SabreTools.Models/Internal/MetadataFile.cs b/SabreTools.Models/Internal/MetadataFile.cs
new file mode 100644
index 00000000..856ad3bf
--- /dev/null
+++ b/SabreTools.Models/Internal/MetadataFile.cs
@@ -0,0 +1,18 @@
+namespace SabreTools.Models.Internal
+{
+    /// <summary>
+    /// Format-agnostic representation of a full metadata file
+    /// </summary>
+    public class MetadataFile : DictionaryBase
+    {
+        #region Keys
+
+        /// <remarks>Machine[]</remarks>
+        public const string MachineKey = "machine";
+
+        /// <remarks>Header</remarks>
+        public const string HeaderKey = "header";
+
+        #endregion
+    }
+}
\ No newline at end of file