diff --git a/Libraries/UniversalEditor.Core/DataFormatFilter.cs b/Libraries/UniversalEditor.Core/DataFormatFilter.cs
index 6f5e672f..3c74b795 100644
--- a/Libraries/UniversalEditor.Core/DataFormatFilter.cs
+++ b/Libraries/UniversalEditor.Core/DataFormatFilter.cs
@@ -154,15 +154,15 @@ namespace UniversalEditor
 						byte[] cmp = new byte[bytes.Length];
 
 						long offset = accessor.Position;
-						if (i < mvarMagicByteOffsets.Length)
+						if (i < MagicByteOffsets.Length)
 						{
-							if (mvarMagicByteOffsets[i] < 0)
+							if (MagicByteOffsets[i] < 0)
 							{
-								accessor.Seek(mvarMagicByteOffsets[i], SeekOrigin.End);
+								accessor.Seek(MagicByteOffsets[i], SeekOrigin.End);
 							}
 							else
 							{
-								accessor.Seek(mvarMagicByteOffsets[i], SeekOrigin.Begin);
+								accessor.Seek(MagicByteOffsets[i], SeekOrigin.Begin);
 							}
 						}
 						accessor.Reader.Read(cmp, 0, cmp.Length);
@@ -223,8 +223,7 @@ namespace UniversalEditor
 			return false;
 		}
 
-		private int[] mvarMagicByteOffsets = new int[0];
-		public int[] MagicByteOffsets { get { return mvarMagicByteOffsets; } set { mvarMagicByteOffsets = value; } }
+		public int[] MagicByteOffsets { get; set; } = new int[0];
 
 		public string ContentType { get; set; } = null;
 		public string PerceivedType { get; set; }
diff --git a/Libraries/UniversalEditor.Essential/DataFormats/UEPackage/UEPackageXMLDataFormat.cs b/Libraries/UniversalEditor.Essential/DataFormats/UEPackage/UEPackageXMLDataFormat.cs
index 4bbd723f..9dbf9f03 100644
--- a/Libraries/UniversalEditor.Essential/DataFormats/UEPackage/UEPackageXMLDataFormat.cs
+++ b/Libraries/UniversalEditor.Essential/DataFormats/UEPackage/UEPackageXMLDataFormat.cs
@@ -936,6 +936,13 @@ namespace UniversalEditor.DataFormats.UEPackage
 										if (tagMagicByteSequence == null) continue;
 										if (tagMagicByteSequence.FullName != "MagicByteSequence") continue;
 
+										int offset = 0;
+										MarkupAttribute attOffset = tagMagicByteSequence.Attributes["Offset"];
+										if (attOffset != null)
+										{
+											offset = Int32.Parse(attOffset.Value);
+										}
+
 										List<byte?> magicByteSequence = new List<byte?>();
 
 										foreach (MarkupElement elMagicByte in tagMagicByteSequence.Elements)
@@ -1008,7 +1015,7 @@ namespace UniversalEditor.DataFormats.UEPackage
 											}
 										}
 
-										magicByteOffsets.Add(0);
+										magicByteOffsets.Add(offset);
 										filter.MagicBytes.Add(magicByteSequence.ToArray());
 									}
 									filter.MagicByteOffsets = magicByteOffsets.ToArray();