diff --git a/SzCli/LocalFileManager.cs b/SzCli/LocalFileManager.cs
new file mode 100644
index 0000000..ae5827e
--- /dev/null
+++ b/SzCli/LocalFileManager.cs
@@ -0,0 +1,34 @@
+using SzLib;
+
+namespace SzCli;
+
+public class LocalFileManager : ISzFileManager
+{
+    public string DataPath
+    {
+        get
+        {
+            var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "data");
+            if (!Directory.Exists(path)) 
+            {
+                Directory.CreateDirectory(path);
+            }
+            
+            return path;
+        }
+    }
+
+    public bool SaveFile(string path, string fileContent)
+    {
+        try
+        {
+            File.WriteAllText(path, fileContent);
+            return true;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine($"Error saving file: {e.Message}");
+            return false;
+        }
+    }
+}
\ No newline at end of file
diff --git a/SzCli/Program.cs b/SzCli/Program.cs
index a169e48..9375ebb 100644
--- a/SzCli/Program.cs
+++ b/SzCli/Program.cs
@@ -1,9 +1,26 @@
+using System;
+using SzLib;
+
 namespace SzCli;
 
 public class Program
 {
     public static void Main(string[] args)
     {
+        var parser = new SzParser(new LocalFileManager());
+
+        Console.WriteLine("Creating test dataset...");
+        var dataset = Test.CreateTestDataset();
+        Console.WriteLine($"Successfully created test dataset with id {dataset.Id}");
         
+        Console.WriteLine("Attempting to save dataset...");
+        var saved = parser.SaveDataset(dataset);
+        Console.WriteLine($"Successfully saved dataset? {saved}");
+        
+        Console.WriteLine("Attempting to load dataset...");
+        var loadedDataset = parser.LoadDataset(dataset.Id);
+        Console.WriteLine($"Successfully loaded dataset? {loadedDataset != null}. Id is {loadedDataset.Id}");
+        
+        Console.WriteLine(loadedDataset.DataObjects["test"].Fields["value"].Value);
     }
 }
\ No newline at end of file
diff --git a/SzCli/Test.cs b/SzCli/Test.cs
new file mode 100644
index 0000000..f742101
--- /dev/null
+++ b/SzCli/Test.cs
@@ -0,0 +1,36 @@
+using SzLib.DataObjects;
+
+namespace SzCli;
+
+public static class Test
+{
+    public static SzDataset CreateTestDataset()
+    {
+        var ds = new SzDataset()
+        {
+            Name = "TestDataset",
+            Id = "test-dataset",
+            DataObjectTemplateId = "0",
+            DataObjectType = "item",
+            Uuid = Guid.NewGuid(),
+        };
+
+        var testDataObject = new SzDataObject()
+        {
+            Name = "TestObject",
+            Id = "test",
+        };
+
+        var testField = new SzField()
+        {
+            Id = "value",
+            FieldType = SzFieldType.Number,
+            Value = "200"
+        };
+        
+        testDataObject.Fields.Add(testField.Id, testField);
+        ds.DataObjects.Add(testDataObject.Id, testDataObject);
+        
+        return ds;
+    }
+}
\ No newline at end of file
diff --git a/SzLib/DataObjects/SzDataObject.cs b/SzLib/DataObjects/SzDataObject.cs
index 19f58ef..bc43c58 100644
--- a/SzLib/DataObjects/SzDataObject.cs
+++ b/SzLib/DataObjects/SzDataObject.cs
@@ -2,7 +2,7 @@ namespace SzLib.DataObjects;
 
 public class SzDataObject 
 {
-    public required string Name;
-    public required string Id;
-    public Dictionary<string, SzField> Fields = [];
+    public required string Name {get; set;}
+    public required string Id {get; set;}
+    public Dictionary<string, SzField> Fields {get; set;} = [];
 }
\ No newline at end of file
diff --git a/SzLib/DataObjects/SzDataObjectTemplate.cs b/SzLib/DataObjects/SzDataObjectTemplate.cs
index 9036dd8..ff765fd 100644
--- a/SzLib/DataObjects/SzDataObjectTemplate.cs
+++ b/SzLib/DataObjects/SzDataObjectTemplate.cs
@@ -2,9 +2,9 @@ namespace SzLib.DataObjects;
 
 public class SzDataObjectTemplate
 {
-    public required string Name;
-    public required string Id;
-    public Guid? Uuid;
-    public required string DataObjectType;
-    public Dictionary<string, SzTemplateField> TemplateFields = [];
+    public required string Name {get; set;}
+    public required string Id {get; set;}
+    public Guid? Uuid {get; set;}
+    public required string DataObjectType {get; set;}
+    public Dictionary<string, SzTemplateField> TemplateFields {get; set;} = [];
 }
\ No newline at end of file
diff --git a/SzLib/DataObjects/SzDataset.cs b/SzLib/DataObjects/SzDataset.cs
index c712bc0..a95bedf 100644
--- a/SzLib/DataObjects/SzDataset.cs
+++ b/SzLib/DataObjects/SzDataset.cs
@@ -2,11 +2,11 @@ namespace SzLib.DataObjects;
 
 public class SzDataset
 {
-	public required string Name;
-	public required string Id;
-	public Guid? Uuid;
+	public required string Name {get; set;}
+	public required string Id {get; set;}
+	public Guid? Uuid {get; set;}
 
-	public required string DataObjectType;
-	public required string DataObjectTemplateId;
-	public Dictionary<string, SzDataObject> DataObjects = [];
+	public required string DataObjectType {get; set;}
+	public required string DataObjectTemplateId {get; set;}
+	public Dictionary<string, SzDataObject> DataObjects {get; set;} = [];
 }
diff --git a/SzLib/DataObjects/SzField.cs b/SzLib/DataObjects/SzField.cs
index e202ac8..524e0c0 100644
--- a/SzLib/DataObjects/SzField.cs
+++ b/SzLib/DataObjects/SzField.cs
@@ -2,8 +2,8 @@ namespace SzLib.DataObjects;
 
 public class SzField
 {
-    public required string Id;
-    public required SzFieldType FieldType;
-    public bool IsList = false;
-    public string Value = "";
+    public required string Id {get; set;}
+    public required SzFieldType FieldType {get; set;}
+    public bool IsList {get; set;} = false;
+    public string Value {get; set;} = "";
 }
\ No newline at end of file
diff --git a/SzLib/DataObjects/SzTemplateField.cs b/SzLib/DataObjects/SzTemplateField.cs
index 2eac7ae..036d935 100644
--- a/SzLib/DataObjects/SzTemplateField.cs
+++ b/SzLib/DataObjects/SzTemplateField.cs
@@ -2,10 +2,10 @@ namespace SzLib.DataObjects;
 
 public class SzTemplateField
 {
-    public required string Name;
-    public required string Id;
-    public bool IsList = false;
-    public string DefaultValue = "";
-    public bool IsSpecialType = false;
-    public string SpecialTypeValue = "";
+    public required string Name {get; set;}
+    public required string Id {get; set;}
+    public bool IsList {get; set;} = false;
+    public string DefaultValue {get; set;} = "";
+    public bool IsSpecialType {get; set;} = false;
+    public string SpecialTypeValue {get; set;} = "";
 }
\ No newline at end of file
diff --git a/SzLib/ISzFileManager.cs b/SzLib/ISzFileManager.cs
index 88f5fc3..64ea745 100644
--- a/SzLib/ISzFileManager.cs
+++ b/SzLib/ISzFileManager.cs
@@ -2,5 +2,7 @@ namespace SzLib;
 
 public interface ISzFileManager 
 {
-    public string DataPath {get; set;}
+    public string DataPath {get;}
+
+    public bool SaveFile(string path, string fileContent);
 }
\ No newline at end of file
diff --git a/SzLib/SzParser.cs b/SzLib/SzParser.cs
index c155157..02a2ff6 100644
--- a/SzLib/SzParser.cs
+++ b/SzLib/SzParser.cs
@@ -3,37 +3,71 @@ using SzLib.DataObjects;
 
 namespace SzLib;
 
-public class SzParser
+public class SzParser(ISzFileManager szFileManager)
 {
-    public readonly ISzFileManager FileManager;
+    private readonly JsonSerializerOptions _jsonOptions = new() { WriteIndented = true };
 
-    private JsonSerializerOptions _jsonOptions = new()
-    {
-        WriteIndented = true,
-    };
-
-    public SzParser(ISzFileManager szFileManager)
-    {
-        FileManager = szFileManager;
-    }
-    
-    public (string result, SzParseError error) SerializeDatasetToJson(SzDataset dataset)
+    public string SerializeDatasetToJson(SzDataset dataset)
     {
         try
         {
             var jsonString = JsonSerializer.Serialize(dataset, _jsonOptions);
-            return (jsonString, SzParseError.None);
+            return jsonString;
         }
         catch (JsonException e)
         {
-            return ("", SzParseError.CouldNotSerialize);
+            throw new Exception("Parse Error: " + e.Message);
+        }
+    }
+
+    public SzDataset? DeserializeDataset(string jsonString)
+    {
+        try
+        {
+            var result = JsonSerializer.Deserialize<SzDataset>(jsonString, _jsonOptions);
+            return result;
+        }
+        catch (Exception e)
+        {
+            throw new Exception("Could not deserialize JSON to type SzDataset: " + e.Message, e);
+        }
+    }
+
+    public bool SaveDataset(SzDataset dataset)
+    {
+        var datasetDir = Path.Combine(szFileManager.DataPath, "datasets", dataset.Id);
+        Directory.CreateDirectory(datasetDir);
+        try
+        {
+            var json = SerializeDatasetToJson(dataset);
+            File.WriteAllText(Path.Combine(datasetDir, "dataset.json"), json);
+            return true;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine("Error saving dataset: " + e.Message);
+            return false;
+        }
+    }
+
+    public SzDataset? LoadDataset(string datasetId)
+    {
+        var datasetPath = Path.Combine(szFileManager.DataPath, "datasets", datasetId, "dataset.json");
+        if (!File.Exists(datasetPath))
+        {
+            Console.WriteLine("Dataset not found: " + datasetId);
+            return null;
+        }
+
+        try
+        {
+            return DeserializeDataset(File.ReadAllText(datasetPath));
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine($"Error loading dataset: {e.Message}");
+            return null;
         }
     }
 }
 
-public enum SzParseError
-{
-    None,
-    CouldNotSerialize,
-    GenericError,
-}
\ No newline at end of file