diff --git a/SabreTools.Models/Internal/Header.cs b/SabreTools.Models/Internal/Header.cs
index 4d47fdc6..fd00f0e6 100644
--- a/SabreTools.Models/Internal/Header.cs
+++ b/SabreTools.Models/Internal/Header.cs
@@ -26,10 +26,6 @@ namespace SabreTools.Models.Internal
         /// <remarks>string</remarks>
         public const string CommentKey = "comment";
 
-        /// TODO: This needs an internal model OR mapping to fields
-        /// <remarks>Configuration</remarks>
-        public const string ConfigurationKey = "configuration";
-
         /// <remarks>string</remarks>
         public const string DateKey = "date";
 
diff --git a/SabreTools.Serialization/Internal.AttractMode.cs b/SabreTools.Serialization/Internal.AttractMode.cs
index 8f1b5f73..392bef5e 100644
--- a/SabreTools.Serialization/Internal.AttractMode.cs
+++ b/SabreTools.Serialization/Internal.AttractMode.cs
@@ -71,6 +71,21 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.AttractMode.MetadataFile"/>
+        /// </summary>
+        public static Models.AttractMode.MetadataFile? ConvertHeaderToAttractMode(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var metadataFile = new Models.AttractMode.MetadataFile
+            {
+                Header = item.ReadStringArray(Models.Internal.Header.HeaderKey),
+            };
+            return metadataFile;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to an array of <cref="Models.AttractMode.Row"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.ClrMamePro.cs b/SabreTools.Serialization/Internal.ClrMamePro.cs
index 45d532c6..5d68f04a 100644
--- a/SabreTools.Serialization/Internal.ClrMamePro.cs
+++ b/SabreTools.Serialization/Internal.ClrMamePro.cs
@@ -374,7 +374,36 @@ namespace SabreTools.Serialization
         #region Deserialize
 
         /// <summary>
-        /// Convert from <cref="Models.Internal.Archive"/> to <cref="Models.ClrMamePro.Archive"/>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.ClrMamePro.ClrMamePro"/>
+        /// </summary>
+        public static Models.ClrMamePro.ClrMamePro? ConvertHeaderToClrMamePro(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var clrMamePro = new Models.ClrMamePro.ClrMamePro
+            {
+                Name = item.ReadString(Models.Internal.Header.NameKey),
+                Description = item.ReadString(Models.Internal.Header.DescriptionKey),
+                RootDir = item.ReadString(Models.Internal.Header.RootDirKey),
+                Category = item.ReadString(Models.Internal.Header.CategoryKey),
+                Version = item.ReadString(Models.Internal.Header.VersionKey),
+                Date = item.ReadString(Models.Internal.Header.DateKey),
+                Author = item.ReadString(Models.Internal.Header.AuthorKey),
+                Homepage = item.ReadString(Models.Internal.Header.HomepageKey),
+                Url = item.ReadString(Models.Internal.Header.UrlKey),
+                Comment = item.ReadString(Models.Internal.Header.CommentKey),
+                Header = item.ReadString(Models.Internal.Header.HeaderKey),
+                Type = item.ReadString(Models.Internal.Header.TypeKey),
+                ForceMerging = item.ReadString(Models.Internal.Header.ForceMergingKey),
+                ForceZipping = item.ReadString(Models.Internal.Header.ForceZippingKey),
+                ForcePacking = item.ReadString(Models.Internal.Header.ForcePackingKey),
+            };
+            return clrMamePro;
+        }
+
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Archive"/> to <cref="Models.ClrMamePro.Machine"/>
         /// </summary>
         public static Models.ClrMamePro.GameBase? ConvertMachineToClrMamePro(Models.Internal.Machine? item, bool game = false)
         {
diff --git a/SabreTools.Serialization/Internal.DosCenter.cs b/SabreTools.Serialization/Internal.DosCenter.cs
index 1ec947d4..2ef43386 100644
--- a/SabreTools.Serialization/Internal.DosCenter.cs
+++ b/SabreTools.Serialization/Internal.DosCenter.cs
@@ -13,7 +13,7 @@ namespace SabreTools.Serialization
         /// <summary>
         /// Convert from <cref="Models.DosCenter.DosCenter"/> to <cref="Models.Internal.Header"/>
         /// </summary>
-        public static Models.Internal.Header ConvertHeaderFromArchiveDotOrg(Models.DosCenter.DosCenter item)
+        public static Models.Internal.Header ConvertHeaderFromDosCenter(Models.DosCenter.DosCenter item)
         {
             var header = new Models.Internal.Header
             {
@@ -70,6 +70,27 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.DosCenter.DosCenter"/>
+        /// </summary>
+        public static Models.DosCenter.DosCenter? ConvertHeaderToDosCenter(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var dosCenter = new Models.DosCenter.DosCenter
+            {
+                Name = item.ReadString(Models.Internal.Header.NameKey),
+                Description = item.ReadString(Models.Internal.Header.DescriptionKey),
+                Version = item.ReadString(Models.Internal.Header.VersionKey),
+                Date = item.ReadString(Models.Internal.Header.DateKey),
+                Author = item.ReadString(Models.Internal.Header.AuthorKey),
+                Homepage = item.ReadString(Models.Internal.Header.HomepageKey),
+                Comment = item.ReadString(Models.Internal.Header.CommentKey),
+            };
+            return dosCenter;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to <cref="Models.DosCenter.Game"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.Listxml.cs b/SabreTools.Serialization/Internal.Listxml.cs
index 93afdd4f..c144973c 100644
--- a/SabreTools.Serialization/Internal.Listxml.cs
+++ b/SabreTools.Serialization/Internal.Listxml.cs
@@ -810,6 +810,38 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.Listxml.M1"/>
+        /// </summary>
+        public static Models.Listxml.M1? ConvertHeaderToListxmlM1(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var m1 = new Models.Listxml.M1
+            {
+                Version = item.ReadString(Models.Internal.Header.VersionKey),
+            };
+            return m1;
+        }
+
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.Listxml.Mame"/>
+        /// </summary>
+        public static Models.Listxml.Mame? ConvertHeaderToListxmlMame(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var mame = new Models.Listxml.Mame
+            {
+                Build = item.ReadString(Models.Internal.Header.BuildKey),
+                Debug = item.ReadString(Models.Internal.Header.DebugKey),
+                MameConfig = item.ReadString(Models.Internal.Header.MameConfigKey),
+            };
+            return mame;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to <cref="Models.Listxml.GameBase"/>
         /// </summary>
@@ -1081,7 +1113,7 @@ namespace SabreTools.Serialization
         /// <summary>
         /// Convert from <cref="Models.Internal.Device"/> to <cref="Models.Listxml.Device"/>
         /// </summary>
-        private static Models.Listxml.Device ConvertToListxml(Models.Internal.Device item)
+        private static Models.Listxml.Device? ConvertToListxml(Models.Internal.Device? item)
         {
             if (item == null)
                 return null;
diff --git a/SabreTools.Serialization/Internal.Logiqx.cs b/SabreTools.Serialization/Internal.Logiqx.cs
index a28f23b5..3567df52 100644
--- a/SabreTools.Serialization/Internal.Logiqx.cs
+++ b/SabreTools.Serialization/Internal.Logiqx.cs
@@ -352,6 +352,68 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.Logiqx.Header"/>
+        /// </summary>
+        public static Models.Logiqx.Header? ConvertHeaderToLogiqx(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var header = new Models.Logiqx.Header
+            {
+                Id = item.ReadString(Models.Internal.Header.IdKey),
+                Name = item.ReadString(Models.Internal.Header.NameKey),
+                Description = item.ReadString(Models.Internal.Header.DescriptionKey),
+                RootDir = item.ReadString(Models.Internal.Header.RootDirKey),
+                Category = item.ReadString(Models.Internal.Header.CategoryKey),
+                Version = item.ReadString(Models.Internal.Header.VersionKey),
+                Date = item.ReadString(Models.Internal.Header.DateKey),
+                Author = item.ReadString(Models.Internal.Header.AuthorKey),
+                Email = item.ReadString(Models.Internal.Header.EmailKey),
+                Homepage = item.ReadString(Models.Internal.Header.HomepageKey),
+                Url = item.ReadString(Models.Internal.Header.UrlKey),
+                Comment = item.ReadString(Models.Internal.Header.CommentKey),
+                Type = item.ReadString(Models.Internal.Header.TypeKey),
+            };
+
+            if (item.ContainsKey(Models.Internal.Header.HeaderKey)
+                || item.ContainsKey(Models.Internal.Header.ForceMergingKey)
+                || item.ContainsKey(Models.Internal.Header.ForceNodumpKey)
+                || item.ContainsKey(Models.Internal.Header.ForcePackingKey))
+            {
+                header.ClrMamePro = new Models.Logiqx.ClrMamePro
+                {
+                    Header = item.ReadString(Models.Internal.Header.HeaderKey),
+                    ForceMerging = item.ReadString(Models.Internal.Header.ForceMergingKey),
+                    ForceNodump = item.ReadString(Models.Internal.Header.ForceNodumpKey),
+                    ForcePacking = item.ReadString(Models.Internal.Header.ForcePackingKey),
+                };
+            }
+
+            if (item.ContainsKey(Models.Internal.Header.PluginKey)
+                || item.ContainsKey(Models.Internal.Header.RomModeKey)
+                || item.ContainsKey(Models.Internal.Header.BiosModeKey)
+                || item.ContainsKey(Models.Internal.Header.SampleModeKey)
+                || item.ContainsKey(Models.Internal.Header.LockRomModeKey)
+                || item.ContainsKey(Models.Internal.Header.LockBiosModeKey)
+                || item.ContainsKey(Models.Internal.Header.LockSampleModeKey))
+            {
+                header.RomCenter = new Models.Logiqx.RomCenter
+                {
+                    Plugin = item.ReadString(Models.Internal.Header.PluginKey),
+                    RomMode = item.ReadString(Models.Internal.Header.RomModeKey),
+                    BiosMode = item.ReadString(Models.Internal.Header.BiosModeKey),
+                    SampleMode = item.ReadString(Models.Internal.Header.SampleModeKey),
+                    LockRomMode = item.ReadString(Models.Internal.Header.LockRomModeKey),
+                    LockBiosMode = item.ReadString(Models.Internal.Header.LockBiosModeKey),
+                    LockSampleMode = item.ReadString(Models.Internal.Header.LockSampleModeKey),
+                };
+            }
+
+            return header;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Archive"/> to <cref="Models.Logiqx.Archive"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.OfflineList.cs b/SabreTools.Serialization/Internal.OfflineList.cs
index 1548140a..e49fdbd1 100644
--- a/SabreTools.Serialization/Internal.OfflineList.cs
+++ b/SabreTools.Serialization/Internal.OfflineList.cs
@@ -109,6 +109,58 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.OfflineList.Dat"/>
+        /// </summary>
+        public static Models.OfflineList.Dat? ConvertHeaderToOfflineList(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var dat = new Models.OfflineList.Dat
+            {
+                NoNamespaceSchemaLocation = item.ReadString(Models.Internal.Header.NoNamespaceSchemaLocationKey),
+            };
+
+            if (item.ContainsKey(Models.Internal.Header.NameKey)
+                || item.ContainsKey(Models.Internal.Header.ImFolderKey)
+                || item.ContainsKey(Models.Internal.Header.DatVersionKey)
+                || item.ContainsKey(Models.Internal.Header.SystemKey)
+                || item.ContainsKey(Models.Internal.Header.ScreenshotsWidthKey)
+                || item.ContainsKey(Models.Internal.Header.ScreenshotsHeightKey)
+                || item.ContainsKey(Models.Internal.Header.InfosKey)
+                || item.ContainsKey(Models.Internal.Header.CanOpenKey)
+                || item.ContainsKey(Models.Internal.Header.NewDatKey)
+                || item.ContainsKey(Models.Internal.Header.SearchKey)
+                || item.ContainsKey(Models.Internal.Header.RomTitleKey))
+            {
+                dat.Configuration = new Models.OfflineList.Configuration
+                {
+                    DatName = item.ReadString(Models.Internal.Header.NameKey),
+                    ImFolder = item.ReadString(Models.Internal.Header.ImFolderKey),
+                    DatVersion = item.ReadString(Models.Internal.Header.DatVersionKey),
+                    System = item.ReadString(Models.Internal.Header.SystemKey),
+                    ScreenshotsWidth = item.ReadString(Models.Internal.Header.ScreenshotsWidthKey),
+                    ScreenshotsHeight = item.ReadString(Models.Internal.Header.ScreenshotsHeightKey),
+                    Infos = item.Read<Models.OfflineList.Infos>(Models.Internal.Header.InfosKey),
+                    CanOpen = item.Read<Models.OfflineList.CanOpen>(Models.Internal.Header.CanOpenKey),
+                    NewDat = item.Read<Models.OfflineList.NewDat>(Models.Internal.Header.NewDatKey),
+                    Search = item.Read<Models.OfflineList.Search>(Models.Internal.Header.SearchKey),
+                    RomTitle = item.ReadString(Models.Internal.Header.RomTitleKey),
+                };
+            }
+
+            if (item.ContainsKey(Models.Internal.Header.ImagesKey))
+            {
+                dat.GUI = new Models.OfflineList.GUI
+                {
+                    Images = item.Read<Models.OfflineList.Images>(Models.Internal.Header.ImagesKey),
+                };
+            }
+
+            return dat;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to <cref="Models.OfflineList.Game"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.OpenMSX.cs b/SabreTools.Serialization/Internal.OpenMSX.cs
index eaf9d5ed..ebd915f7 100644
--- a/SabreTools.Serialization/Internal.OpenMSX.cs
+++ b/SabreTools.Serialization/Internal.OpenMSX.cs
@@ -110,6 +110,21 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.OpenMSX.SoftwareDb"/>
+        /// </summary>
+        public static Models.OpenMSX.SoftwareDb? ConvertHeaderToOpenMSX(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var softwareDb = new Models.OpenMSX.SoftwareDb
+            {
+                Timestamp = item.ReadString(Models.Internal.Header.TimestampKey),
+            };
+            return softwareDb;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to <cref="Models.OpenMSX.Software"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.RomCenter.cs b/SabreTools.Serialization/Internal.RomCenter.cs
index 53ce7d63..829a5eef 100644
--- a/SabreTools.Serialization/Internal.RomCenter.cs
+++ b/SabreTools.Serialization/Internal.RomCenter.cs
@@ -83,6 +83,62 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.RomCenter.MetadataFile"/>
+        /// </summary>
+        public static Models.RomCenter.MetadataFile? ConvertHeaderToRomCenter(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var metadataFile = new Models.RomCenter.MetadataFile();
+
+            if (item.ContainsKey(Models.Internal.Header.AuthorKey)
+                || item.ContainsKey(Models.Internal.Header.VersionKey)
+                || item.ContainsKey(Models.Internal.Header.EmailKey)
+                || item.ContainsKey(Models.Internal.Header.HomepageKey)
+                || item.ContainsKey(Models.Internal.Header.UrlKey)
+                || item.ContainsKey(Models.Internal.Header.DateKey)
+                || item.ContainsKey(Models.Internal.Header.CommentKey))
+            {
+                metadataFile.Credits = new Models.RomCenter.Credits
+                {
+                    Author = item.ReadString(Models.Internal.Header.AuthorKey),
+                    Version = item.ReadString(Models.Internal.Header.VersionKey),
+                    Email = item.ReadString(Models.Internal.Header.EmailKey),
+                    Homepage = item.ReadString(Models.Internal.Header.HomepageKey),
+                    Url = item.ReadString(Models.Internal.Header.UrlKey),
+                    Date = item.ReadString(Models.Internal.Header.DateKey),
+                    Comment = item.ReadString(Models.Internal.Header.CommentKey),
+                };
+            }
+
+            if (item.ContainsKey(Models.Internal.Header.DatVersionKey)
+                || item.ContainsKey(Models.Internal.Header.PluginKey)
+                || item.ContainsKey(Models.Internal.Header.ForceMergingKey))
+            {
+                metadataFile.Dat = new Models.RomCenter.Dat
+                {
+                    Version = item.ReadString(Models.Internal.Header.DatVersionKey),
+                    Plugin = item.ReadString(Models.Internal.Header.PluginKey),
+                    Split = item.ReadString(Models.Internal.Header.ForceMergingKey) == "split" ? "yes" : "no",
+                    Merge = item.ReadString(Models.Internal.Header.ForceMergingKey) == "merge" ? "yes" : "no",
+                };
+            }
+
+            if (item.ContainsKey(Models.Internal.Header.RefNameKey)
+                || item.ContainsKey(Models.Internal.Header.EmulatorVersionKey))
+            {
+                metadataFile.Emulator = new Models.RomCenter.Emulator
+                {
+                    RefName = item.ReadString(Models.Internal.Header.RefNameKey),
+                    Version = item.ReadString(Models.Internal.Header.EmulatorVersionKey),
+                };
+            }
+
+            return metadataFile;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to an array of <cref="Models.RomCenter.Rom"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.SeparatedValue.cs b/SabreTools.Serialization/Internal.SeparatedValue.cs
index 86ba4736..d238188c 100644
--- a/SabreTools.Serialization/Internal.SeparatedValue.cs
+++ b/SabreTools.Serialization/Internal.SeparatedValue.cs
@@ -13,7 +13,7 @@ namespace SabreTools.Serialization
         /// <summary>
         /// Convert from <cref="Models.SeparatedValue.MetadataFile"/> to <cref="Models.Internal.Header"/>
         /// </summary>
-        public static Models.Internal.Header ConvertHeaderFromArchiveDotOrg(Models.SeparatedValue.MetadataFile item)
+        public static Models.Internal.Header ConvertHeaderFromSeparatedValue(Models.SeparatedValue.MetadataFile item)
         {
             var header = new Models.Internal.Header
             {
@@ -104,6 +104,21 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.SeparatedValue.MetadataFile"/>
+        /// </summary>
+        public static Models.SeparatedValue.MetadataFile? ConvertHeaderToSeparatedValue(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var metadataFile = new Models.SeparatedValue.MetadataFile
+            {
+                Header = item.ReadStringArray(Models.Internal.Header.HeaderKey),
+            };
+            return metadataFile;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to an array of <cref="Models.SeparatedValue.Row"/>
         /// </summary>
diff --git a/SabreTools.Serialization/Internal.SoftwareList.cs b/SabreTools.Serialization/Internal.SoftwareList.cs
index c2f0ad28..382e53df 100644
--- a/SabreTools.Serialization/Internal.SoftwareList.cs
+++ b/SabreTools.Serialization/Internal.SoftwareList.cs
@@ -294,6 +294,23 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Header"/> to <cref="Models.SoftwareList.SoftwareList"/>
+        /// </summary>
+        public static Models.SoftwareList.SoftwareList? ConvertHeaderToSoftwareList(Models.Internal.Header? item)
+        {
+            if (item == null)
+                return null;
+
+            var softwareList = new Models.SoftwareList.SoftwareList
+            {
+                Name = item.ReadString(Models.Internal.Header.NameKey),
+                Description = item.ReadString(Models.Internal.Header.DescriptionKey),
+                Notes = item.ReadString(Models.Internal.Header.NotesKey),
+            };
+            return softwareList;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Machine"/> to <cref="Models.SoftwareList.Software"/>
         /// </summary>