diff --git a/FFXIVClientStructs/FFXIV/Client/System/File/FileDescriptor.cs b/FFXIVClientStructs/FFXIV/Client/System/File/FileDescriptor.cs
index ec5df4ed22..b2a44310b7 100644
--- a/FFXIVClientStructs/FFXIV/Client/System/File/FileDescriptor.cs
+++ b/FFXIVClientStructs/FFXIV/Client/System/File/FileDescriptor.cs
@@ -8,7 +8,7 @@ public unsafe partial struct FileDescriptor {
     [FieldOffset(0x8)] public byte* FileBuffer;
     [FieldOffset(0x10)] public ulong FileLength;
     [FieldOffset(0x18)] public ulong CurrentFileOffset;
-    [FieldOffset(0x30)] public void* FileInterface; // Client::System::File::FileInterface
+    [FieldOffset(0x30)] public FileInterface* FileInterface; // Client::System::File::FileInterface
     [FieldOffset(0x60)] public FileDescriptor* Previous; // believe its a queue
     [FieldOffset(0x68)] public FileDescriptor* Next;
     [FieldOffset(0x70), FixedSizeArray(isString: true)] internal FixedSizeArray260<char> _filePath;
diff --git a/FFXIVClientStructs/FFXIV/Client/System/File/FileInterface.cs b/FFXIVClientStructs/FFXIV/Client/System/File/FileInterface.cs
new file mode 100644
index 0000000000..40d41e882b
--- /dev/null
+++ b/FFXIVClientStructs/FFXIV/Client/System/File/FileInterface.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace FFXIVClientStructs.FFXIV.Client.System.File;
+
+[GenerateInterop]
+[StructLayout(LayoutKind.Explicit, Size = 0x230)]
+public unsafe partial struct FileInterface { 
+    [FieldOffset(0x10)] public nint FileHandle;
+    [FieldOffset(0x20)] public bool IsOpen;
+
+    [MemberFunction("E8 ?? ?? ?? ?? 33 F6 45 32 F6")]
+    public partial void Ctor();
+
+    [MemberFunction("E8 ?? ?? ?? ?? 0F B6 C8 3C 01"), GenerateStringOverloads]
+    public partial sbyte Open(CStringPointer filePath,int openMode);
+
+    [MemberFunction("E8 ?? ?? ?? ?? 8B 05 ?? ?? ?? ?? EB 18")]
+    public partial sbyte Close();
+
+    [MemberFunction("E8 ?? ?? ?? ?? 89 1F 33 C0")]
+    public partial sbyte Read(void* buffer,ulong size);
+
+    [MemberFunction("E8 ?? ?? ?? ?? 48 8B 44 24 ?? 48 03 E8")]
+    public partial sbyte ReadWithOffset(void* buffer, ulong size, ulong offset);
+
+    [MemberFunction("E8 ?? ?? ?? ?? 41 3A C7 75 0E")]
+    public partial sbyte Write(void* buffer, ulong size);
+
+    [MemberFunction("E8 ?? ?? ?? ?? 49 2B C6")]
+    public partial ulong GetFileSize();
+}
diff --git a/FFXIVClientStructs/FFXIV/Client/System/File/FileThread.cs b/FFXIVClientStructs/FFXIV/Client/System/File/FileThread.cs
index bd095f0566..35b28cf75b 100644
--- a/FFXIVClientStructs/FFXIV/Client/System/File/FileThread.cs
+++ b/FFXIVClientStructs/FFXIV/Client/System/File/FileThread.cs
@@ -3,7 +3,9 @@ namespace FFXIVClientStructs.FFXIV.Client.System.File;
 // Client::System::File::FileThread
 //   Client::System::Threading::Thread
 //     Client::System::Common::NonCopyable
+[GenerateInterop]
 [StructLayout(LayoutKind.Explicit, Size = 0x2518)]
-public unsafe struct FileThread {
+public unsafe partial struct FileThread {
     [FieldOffset(0x0008)] public void* SecurityAttributes; // https://learn.microsoft.com/en-us/windows/win32/api/synchapi/nf-synchapi-createeventa
+    [FieldOffset(0x0028), FixedSizeArray] internal FixedSizeArray20<Pointer<SqPackManager>> _sqPackManagers;
 }
diff --git a/FFXIVClientStructs/FFXIV/Client/System/File/SqPackHeader.cs b/FFXIVClientStructs/FFXIV/Client/System/File/SqPackHeader.cs
new file mode 100644
index 0000000000..552c8078f8
--- /dev/null
+++ b/FFXIVClientStructs/FFXIV/Client/System/File/SqPackHeader.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace FFXIVClientStructs.FFXIV.Client.System.File;
+// https://github.com/NotAdam/Lumina/blob/12d0e8d418d8dc49f04e6bee1d06bae2905232c6/src/Lumina/Data/Structs/SqPackHeader.cs
+public enum PlatformId : byte {
+    Win32,
+    PS3,
+    PS4,
+    PS5,
+    Lys // Xbox
+}
+
+[GenerateInterop]
+[StructLayout(LayoutKind.Explicit, Size = 0x400)]
+public partial struct SqPackHeader {
+    [FieldOffset(0x000)] internal FixedSizeArray8<byte> Magic;
+    [FieldOffset(0x008)] public PlatformId PlatformId;
+    //[FieldOffset(0x009)] internal byte[] Unknown;
+    [FieldOffset(0x00C)] public uint Size;
+    [FieldOffset(0x010)] public uint Version;
+    [FieldOffset(0x014)] public uint Type;
+}
diff --git a/FFXIVClientStructs/FFXIV/Client/System/File/SqPackIndexHeader.cs b/FFXIVClientStructs/FFXIV/Client/System/File/SqPackIndexHeader.cs
new file mode 100644
index 0000000000..91b0504cf5
--- /dev/null
+++ b/FFXIVClientStructs/FFXIV/Client/System/File/SqPackIndexHeader.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace FFXIVClientStructs.FFXIV.Client.System.File;
+
+//https://github.com/NotAdam/Lumina/blob/12d0e8d418d8dc49f04e6bee1d06bae2905232c6/src/Lumina/Data/Structs/SqPackIndexHeader.cs
+[StructLayout(LayoutKind.Explicit, Size = 0x400)]
+public unsafe struct SqPackIndexHeader {
+    [FieldOffset(0x000)] public uint Size;
+    [FieldOffset(0x004)] public uint Version;
+    [FieldOffset(0x008)] public uint IndexDataOffset;
+    [FieldOffset(0x00C)] public uint IndexDataSize;
+    [FieldOffset(0x010)] public fixed byte IndexDataHash[64];
+    [FieldOffset(0x050)] public uint NumberOfDataFile;
+    [FieldOffset(0x054)] public uint SynonymDataOffset;
+    [FieldOffset(0x058)] public uint SynonymDataSize;
+    [FieldOffset(0x05C)] public fixed byte SynonymDataHash[64];
+    [FieldOffset(0x09C)] public uint EmptyBlockDataOffset;
+    [FieldOffset(0x0A0)] public uint EmptyBlockDataSize;
+    [FieldOffset(0x0A4)] public fixed byte EmptyBlockDataHash[64];
+    [FieldOffset(0x0E4)] public uint DirIndexDataOffset;
+    [FieldOffset(0x0E8)] public uint DirIndexDataSize;
+    [FieldOffset(0x0EC)] public fixed byte DirIndexDataHash[64];
+    [FieldOffset(0x12C)] public uint IndexType;
+    [FieldOffset(0x130)] internal fixed byte Reserved[656];
+    [FieldOffset(0x3C0)] public fixed byte SelfHash[64];
+}
diff --git a/FFXIVClientStructs/FFXIV/Client/System/File/SqPackManager.cs b/FFXIVClientStructs/FFXIV/Client/System/File/SqPackManager.cs
new file mode 100644
index 0000000000..d4df8193f1
--- /dev/null
+++ b/FFXIVClientStructs/FFXIV/Client/System/File/SqPackManager.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using FFXIVClientStructs.FFXIV.Client.System.Resource;
+using FFXIVClientStructs.FFXIV.Component.GUI;
+
+namespace FFXIVClientStructs.FFXIV.Client.System.File;
+
+[GenerateInterop]
+[StructLayout(LayoutKind.Explicit, Size = 0xAF0)]
+public unsafe partial struct SqPackManager {
+    [FieldOffset(0x000)] public FileManager* FileManager;
+    [FieldOffset(0x014)] public SqPackIndexHeader IndexHeader;
+    [FieldOffset(0x414)] public SqPackHeader SqPackHeader;
+    [FieldOffset(0x814)] public ResourceCategory ResourceCategory;
+    [FieldOffset(0x818)] public int PackId;
+    [FieldOffset(0x81C)] public uint DataCount;
+    [FieldOffset(0x820)] public uint SynonymDataCount;
+    [FieldOffset(0x824)] public uint DirIndexDataCount;
+    [FieldOffset(0x834)] public uint FileSize;
+    [FieldOffset(0x840)] public FileAccessPath FilePath;
+
+    [FieldOffset(0xA50)] public void* IndexData;
+    [FieldOffset(0xA58)] public void* SynonymData;
+    [FieldOffset(0xA60)] public void* DirIndexData;
+    [FieldOffset(0xA88), FixedSizeArray] internal FixedSizeArray10<Pointer<FileInterface>> _dataFiles;
+    [FieldOffset(0xAD8)] public FileInterface* IndexFile;
+    [FieldOffset(0xAE8)] public void* GetOffset;
+
+    [MemberFunction("E8 ?? ?? ?? ?? EB 03 49 8B C7 48 89 03 48 83 C3 08")]
+    public partial void Ctor();
+
+    [MemberFunction("E8 ?? ?? ?? ?? 49 8D 55 70 49 8B CF")]
+    public partial bool LoadIndexFile(ResourceCategory category, int packId);
+
+    [MemberFunction("48 89 6C 24 ?? 56 57 41 56 48 81 EC ?? ?? ?? ?? 48 8B 05 ?? ?? ?? ?? 48 33 C4 48 89 84 24 ?? ?? ?? ?? 8B 69 64")]
+    public partial bool LoadDataFiles();
+
+    [MemberFunction("E8 ?? ?? ?? ?? 48 8B 8B ?? ?? ?? ?? 44 38 69 20")]
+    public partial ulong GetSqPackPath(FileAccessPath* path, int fileId, ResourceCategory category, int packId, byte* platform, byte* a7);
+
+    [MemberFunction("40 55 41 54 41 56 41 57 48 81 EC ?? ?? ?? ?? 48 8B 05 ?? ?? ?? ?? 48 33 C4 48 89 84 24 ?? ?? ?? ?? 80 79 0A 00")]
+    public partial bool GetOffsetFromIndex(CStringPointer path, uint* offset, uint* fileId);
+
+    [MemberFunction("40 53 55 56 57 41 54 41 55 41 56 41 57 48 81 EC ?? ?? ?? ?? 48 8B 05 ?? ?? ?? ?? 48 33 C4 48 89 84 24 ?? ?? ?? ?? 48 8B EA"), GenerateStringOverloads]
+    public partial bool GetOffsetFromIndex2(CStringPointer path, uint* offset, uint* fileId);
+
+    [StaticAddress("48 8D 0D ?? ?? ?? ?? 80 3C 08 ?? 0F 85", 3, isPointer: true)]
+    public static partial byte* GetIndex2Table();
+}
+
+
diff --git a/ida/data.yml b/ida/data.yml
index ce71cf5fd7..3e0e790fc9 100644
--- a/ida/data.yml
+++ b/ida/data.yml
@@ -5102,6 +5102,14 @@ classes:
       - ea: 0x142096A60
     vfuncs:
       0: Dtor
+    funcs:
+      0x14045DAC0: ctor
+      0x14045DB60: Open
+      0x14045DF80: Close
+      0x14045DCF0: Read
+      0x14045DDA0: ReadWithOffset
+      0x14045DE50: Write
+      0x14045DF40: GetFileSize
   Client::System::File::FileThread:
     vtbls:
       - ea: 0x142096A80
@@ -5129,6 +5137,14 @@ classes:
       0x1400D4370: Copy
       0x140095180: SetPathUtf8String
       0x140094950: Dtor
+  Client::System::File::SqPackManager:
+    funcs:
+      0x1417CD170: ctor
+      0x1417CD4A0: LoadIndexFile
+      0x1417CD8B0: LoadDataFiles
+      0x1417CCD40: GetSqPackPath
+      0x1417CDA10: GetOffsetFromIndex
+      0x1417CDC70: GetOffsetFromIndex2    
   Client::System::Resource::Handle::ResourceHandle:
     vtbls:
       - ea: 0x142078258