diff --git a/app/MindWork AI Studio/Tools/LongExtensions.cs b/app/MindWork AI Studio/Tools/LongExtensions.cs
new file mode 100644
index 0000000..3209e47
--- /dev/null
+++ b/app/MindWork AI Studio/Tools/LongExtensions.cs	
@@ -0,0 +1,22 @@
+namespace AIStudio.Tools;
+
+public static class LongExtensions
+{
+    /// <summary>
+    /// Formats the file size in a human-readable format.
+    /// </summary>
+    /// <param name="sizeBytes">The size in bytes.</param>
+    /// <returns>The formatted file size.</returns>
+    public static string FileSize(this long sizeBytes)
+    {
+        string[] sizes = { "B", "kB", "MB", "GB", "TB" };
+        var order = 0;
+        while (sizeBytes >= 1024 && order < sizes.Length - 1)
+        {
+            order++;
+            sizeBytes /= 1024;
+        }
+
+        return $"{sizeBytes:0.##} {sizes[order]}";
+    }
+}
\ No newline at end of file