diff --git a/src/LibHac/Fs/FsEnums.cs b/src/LibHac/Fs/FsEnums.cs
index b79a2a79..a6714b59 100644
--- a/src/LibHac/Fs/FsEnums.cs
+++ b/src/LibHac/Fs/FsEnums.cs
@@ -89,7 +89,7 @@ namespace LibHac.Fs
         Creating = 1,
         State2 = 2,
         MarkedForDeletion = 3,
-        State4 = 4,
+        Extending = 4,
     }
 
     public enum ImageDirectoryId
diff --git a/src/LibHac/Fs/ResultFs.cs b/src/LibHac/Fs/ResultFs.cs
index d2381684..e98f7151 100644
--- a/src/LibHac/Fs/ResultFs.cs
+++ b/src/LibHac/Fs/ResultFs.cs
@@ -139,6 +139,6 @@
 
         public static Result SubStorageNotInitialized => new Result(ModuleFs, 6902);
         public static Result MountNameNotFound => new Result(ModuleFs, 6905);
-        public static Result Result6906 => new Result(ModuleFs, 6906);
+        public static Result SaveDataIsExtending => new Result(ModuleFs, 6906);
     }
 }
diff --git a/src/LibHac/Fs/Shim/SaveDataManagement.cs b/src/LibHac/Fs/Shim/SaveDataManagement.cs
index 12aca8b2..08450ecf 100644
--- a/src/LibHac/Fs/Shim/SaveDataManagement.cs
+++ b/src/LibHac/Fs/Shim/SaveDataManagement.cs
@@ -219,6 +219,30 @@ namespace LibHac.Fs.Shim
             return result;
         }
 
+        public static Result OpenSaveDataIterator(this FileSystemClient fs, out SaveDataIterator iterator, SaveDataSpaceId spaceId, ref SaveDataFilter filter)
+        {
+            var tempIterator = new SaveDataIterator();
+            SaveDataFilter tempFilter = filter;
+
+            Result result = fs.RunOperationWithAccessLog(LocalAccessLogMode.System,
+                () =>
+                {
+                    IFileSystemProxy fsProxy = fs.GetFileSystemProxyServiceObject();
+
+                    Result rc = fsProxy.OpenSaveDataInfoReaderWithFilter(out ISaveDataInfoReader reader, spaceId, ref tempFilter);
+                    if (rc.IsFailure()) return rc;
+
+                    tempIterator = new SaveDataIterator(fs, reader);
+
+                    return Result.Success;
+                },
+                () => $", savedataspaceid: {spaceId}");
+
+            iterator = result.IsSuccess() ? tempIterator : default;
+
+            return result;
+        }
+
         public static Result DisableAutoSaveDataCreation(this FileSystemClient fsClient)
         {
             IFileSystemProxy fsProxy = fsClient.GetFileSystemProxyServiceObject();
diff --git a/src/LibHac/FsService/FileSystemProxy.cs b/src/LibHac/FsService/FileSystemProxy.cs
index b4a59cea..8dd1d19e 100644
--- a/src/LibHac/FsService/FileSystemProxy.cs
+++ b/src/LibHac/FsService/FileSystemProxy.cs
@@ -494,8 +494,8 @@ namespace LibHac.FsService
                 if (indexerValue.SpaceId != indexerSpaceId)
                     return ResultFs.TargetNotFound.Log();
 
-                if (indexerValue.State == SaveDataState.State4)
-                    return ResultFs.Result6906.Log();
+                if (indexerValue.State == SaveDataState.Extending)
+                    return ResultFs.SaveDataIsExtending.Log();
 
                 saveDataId = indexerValue.SaveDataId;
             }
@@ -703,7 +703,23 @@ namespace LibHac.FsService
 
         public Result OpenSaveDataInfoReader(out ISaveDataInfoReader infoReader)
         {
-            throw new NotImplementedException();
+            infoReader = default;
+
+            // Missing permission check
+
+            SaveDataIndexerReader indexReader = default;
+
+            try
+            {
+                Result rc = FsServer.SaveDataIndexerManager.GetSaveDataIndexer(out indexReader, SaveDataSpaceId.System);
+                if (rc.IsFailure()) return rc;
+
+                return indexReader.Indexer.OpenSaveDataInfoReader(out infoReader);
+            }
+            finally
+            {
+                indexReader.Dispose();
+            }
         }
 
         public Result OpenSaveDataInfoReaderBySaveDataSpaceId(out ISaveDataInfoReader infoReader, SaveDataSpaceId spaceId)
@@ -741,7 +757,30 @@ namespace LibHac.FsService
         public Result OpenSaveDataInfoReaderWithFilter(out ISaveDataInfoReader infoReader, SaveDataSpaceId spaceId,
             ref SaveDataFilter filter)
         {
-            throw new NotImplementedException();
+            infoReader = default;
+
+            // Missing permission check
+
+            SaveDataIndexerReader indexReader = default;
+
+            try
+            {
+                Result rc = FsServer.SaveDataIndexerManager.GetSaveDataIndexer(out indexReader, spaceId);
+                if (rc.IsFailure()) return rc;
+
+                rc = indexReader.Indexer.OpenSaveDataInfoReader(out ISaveDataInfoReader baseInfoReader);
+                if (rc.IsFailure()) return rc;
+
+                var filterInternal = new SaveDataFilterInternal(ref filter, spaceId);
+
+                infoReader = new SaveDataInfoFilterReader(baseInfoReader, ref filterInternal);
+
+                return Result.Success;
+            }
+            finally
+            {
+                indexReader.Dispose();
+            }
         }
 
         public Result FindSaveDataWithFilter(out long count, Span<byte> saveDataInfoBuffer, SaveDataSpaceId spaceId,