diff --git a/ArcFormats/ArcCommon.cs b/ArcFormats/ArcCommon.cs
index 0e5a0f7a..fbf0c37b 100644
--- a/ArcFormats/ArcCommon.cs
+++ b/ArcFormats/ArcCommon.cs
@@ -27,6 +27,7 @@ using GameRes.Utility;
 using System;
 using System.IO;
 using System.Linq;
+using System.ComponentModel.Composition;
 
 namespace GameRes.Formats
 {
@@ -340,4 +341,13 @@ namespace GameRes.Formats
                 dump.Write (mem, 0, mem.Length);
         }
     }
+
+    [Export(typeof(ScriptFormat))]
+    public class DataFileFormat : GenericScriptFormat
+    {
+        public override string        Type { get { return ""; } }
+        public override string         Tag { get { return "DAT/GENERIC"; } }
+        public override string Description { get { return "Unidentified data file"; } }
+        public override uint     Signature { get { return 0; } }
+    }
 }