diff --git a/PKX/f1-Main.cs b/PKX/f1-Main.cs
index 153d0f277..83e0ba37b 100644
--- a/PKX/f1-Main.cs
+++ b/PKX/f1-Main.cs
@@ -512,6 +512,18 @@ private void openQuick(string path, bool force = false)
         private void openFile(byte[] input, string path, string ext)
         {
             MysteryGift tg; PKM temp; string c;
+            byte[] footer = new byte[0];
+            #region DeSmuME .dsv detect
+            if (input.Length > SaveUtil.SIZE_G4RAW)
+            {
+                bool dsv = SaveUtil.FOOTER_DSV.SequenceEqual(input.Skip(input.Length - SaveUtil.FOOTER_DSV.Length).Take(SaveUtil.FOOTER_DSV.Length));
+                if (dsv)
+                {
+                    footer = input.Skip(SaveUtil.SIZE_G4RAW).ToArray();
+                    input = input.Take(SaveUtil.SIZE_G4RAW).ToArray();
+                }
+            }
+            #endregion
             #region Powersaves Read-Only Conversion
             if (input.Length == 0x10009C) // Resize to 1MB
             {
@@ -541,7 +553,7 @@ private void openFile(byte[] input, string path, string ext)
             #endregion
             #region SAV/PKM
             else if (SaveUtil.getSAVGeneration(input) > -1) // Supports Gen4/5/6
-                openSAV(input, path);
+            { openSAV(input, path); SAV.Footer = footer; }
             else if ((temp = PKMConverter.getPKMfromBytes(input)) != null)
             {
                 PKM pk = PKMConverter.convertToFormat(temp, SAV.Generation, out c);
@@ -3141,7 +3153,7 @@ private void clickExportSAV(object sender, EventArgs e)
 
             SaveFileDialog main = new SaveFileDialog
             {
-                Filter = "Main SAV|*.*", 
+                Filter = SAV.Filter, 
                 FileName = SAV.FileName,
                 RestoreDirectory = true
             };
@@ -3153,7 +3165,9 @@ private void clickExportSAV(object sender, EventArgs e)
 
             if (SAV.HasBox)
                 SAV.CurrentBox = CB_BoxSelect.SelectedIndex;
-            File.WriteAllBytes(main.FileName, SAV.Write());
+
+            bool dsv = Path.GetExtension(main.FileName).ToLower() == ".dsv";
+            File.WriteAllBytes(main.FileName, SAV.Write(dsv));
             Util.Alert("SAV exported to:", main.FileName);
         }
 
diff --git a/Saves/SAV4.cs b/Saves/SAV4.cs
index 36b90303a..9867a1f7a 100644
--- a/Saves/SAV4.cs
+++ b/Saves/SAV4.cs
@@ -6,6 +6,8 @@ namespace PKHeX
     public sealed class SAV4 : SaveFile
     {
         public override string BAKName => $"{FileName} [{OT} ({Version})" +/* - {LastSavedTime}*/ "].bak";
+        public override string Filter => (Footer.Length > 0 ? "DeSmuME DSV|*.dsv|" : "") + "SAV File|*.sav";
+        public override string Extension => ".sav";
         public SAV4(byte[] data = null)
         {
             Data = data == null ? new byte[SaveUtil.SIZE_G4RAW] : (byte[])data.Clone();
diff --git a/Saves/SAV5.cs b/Saves/SAV5.cs
index b9c031a5d..81c40cf11 100644
--- a/Saves/SAV5.cs
+++ b/Saves/SAV5.cs
@@ -8,6 +8,8 @@ public sealed class SAV5 : SaveFile
     {
         // Save Data Attributes
         public override string BAKName => $"{FileName} [{OT} ({Version})" +/* - {LastSavedTime}*/ "].bak";
+        public override string Filter => (Footer.Length > 0 ? "DeSmuME DSV|*.dsv|" : "") + "SAV File|*.sav*";
+        public override string Extension => ".sav";
         public SAV5(byte[] data = null)
         {
             Data = data == null ? new byte[SaveUtil.SIZE_G5RAW] : (byte[])data.Clone();
diff --git a/Saves/SAV6.cs b/Saves/SAV6.cs
index 882a8e428..e7b73b445 100644
--- a/Saves/SAV6.cs
+++ b/Saves/SAV6.cs
@@ -8,6 +8,8 @@ public sealed class SAV6 : SaveFile
     {
         // Save Data Attributes
         public override string BAKName => $"{FileName} [{OT} ({Version}) - {LastSavedTime}].bak";
+        public override string Filter => "Main SAV|*.*";
+        public override string Extension => "";
         public SAV6(byte[] data = null)
         {
             Data = data == null ? new byte[SaveUtil.SIZE_G6ORAS] : (byte[])data.Clone();
diff --git a/Saves/SaveFile.cs b/Saves/SaveFile.cs
index de8039182..717fddf86 100644
--- a/Saves/SaveFile.cs
+++ b/Saves/SaveFile.cs
@@ -17,6 +17,8 @@ public abstract class SaveFile
         public abstract byte[] BAK { get; }
         public abstract bool Exportable { get; }
         public abstract SaveFile Clone();
+        public abstract string Filter { get; }
+        public byte[] Footer { protected get; set; } // .dsv
 
         // General PKM Properties
         protected abstract Type PKMType { get; }
@@ -29,9 +31,11 @@ public abstract class SaveFile
         public ushort[] HeldItems { get; protected set; }
 
         // General SAV Properties
-        public byte[] Write()
+        public byte[] Write(bool DSV)
         {
             setChecksums();
+            if (Footer.Length > 0 && DSV)
+                return Data.Concat(Footer).ToArray();
             return Data;
         }
         public virtual string MiscSaveChecks() { return ""; }
@@ -274,7 +278,8 @@ public virtual MysteryGiftAlbum GiftAlbum
         public abstract int BoxCount { get; }
         public abstract int PartyCount { get; protected set; }
         public virtual int CurrentBox { get { return 0; } set { } }
-        
+        public abstract string Extension { get; }
+
         // Varied Methods
         protected abstract void setChecksums();
         public abstract int getBoxOffset(int box);
diff --git a/Saves/SaveUtil.cs b/Saves/SaveUtil.cs
index e8c05db91..cd0dc462d 100644
--- a/Saves/SaveUtil.cs
+++ b/Saves/SaveUtil.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Linq;
+using System.Text;
 
 namespace PKHeX
 {
@@ -28,9 +29,7 @@ internal static class SaveUtil
         internal const int SIZE_G5B2W2 = 0x26000;
         internal const int SIZE_G4RAW = 0x80000;
 
-        internal static readonly byte[] EncryptedBlank4 = PKX.encryptArray45(new byte[PKX.SIZE_4PARTY]);
-        internal static readonly byte[] EncryptedBlank5 = PKX.encryptArray45(new byte[PKX.SIZE_5PARTY]);
-        internal static readonly byte[] EncryptedBlank6 = PKX.encryptArray(new byte[PKX.SIZE_6PARTY]);
+        internal static readonly byte[] FOOTER_DSV = Encoding.ASCII.GetBytes("|-DESMUME SAVE-|");
 
         internal static int getSAVGeneration(byte[] data)
         {