diff --git a/src/Infrastructure/BotSharp.Abstraction/Files/IFileStorageService.cs b/src/Infrastructure/BotSharp.Abstraction/Files/IFileStorageService.cs
index 99840dff..065cdc55 100644
--- a/src/Infrastructure/BotSharp.Abstraction/Files/IFileStorageService.cs
+++ b/src/Infrastructure/BotSharp.Abstraction/Files/IFileStorageService.cs
@@ -4,6 +4,19 @@ namespace BotSharp.Abstraction.Files;
 
 public interface IFileStorageService
 {
+    #region Common
+    string GetDirectory(string conversationId);
+    byte[] GetFileBytes(string fileStorageUrl);
+    bool SaveFileStreamToPath(string filePath, Stream stream);
+    bool SaveFileBytesToPath(string filePath, byte[] bytes);
+    string GetParentDir(string dir, int level = 1);
+    bool ExistDirectory(string? dir);
+    void CreateDirectory(string dir);
+    void DeleteDirectory(string dir);
+    string BuildDirectory(params string[] segments);
+    #endregion
+
+
     #region Conversation
     /// <summary>
     /// Get the message file screenshots for specific content types, e.g., pdf
@@ -38,20 +51,9 @@ public interface IFileStorageService
     bool DeleteConversationFiles(IEnumerable<string> conversationIds);
     #endregion
 
+
     #region User
     string GetUserAvatar();
     bool SaveUserAvatar(BotSharpFile file);
     #endregion
-
-    #region Common
-    string GetDirectory(string conversationId);
-    byte[] GetFileBytes(string filePath);
-    bool SaveFileStreamToPath(string filePath, Stream stream);
-    bool SaveFileBytesToPath(string filePath, byte[] bytes);
-    string GetParentDir(string dir, int level = 1);
-    bool ExistDirectory(string? dir);
-    void CreateDirectory(string dir);
-    void DeleteDirectory(string dir);
-    string BuildDirectory(params string[] segments);
-    #endregion
 }
diff --git a/src/Infrastructure/BotSharp.Core/Files/Services/Storage/LocalFileStorageService.Common.cs b/src/Infrastructure/BotSharp.Core/Files/Services/Storage/LocalFileStorageService.Common.cs
index c7a3cec9..c49edbce 100644
--- a/src/Infrastructure/BotSharp.Core/Files/Services/Storage/LocalFileStorageService.Common.cs
+++ b/src/Infrastructure/BotSharp.Core/Files/Services/Storage/LocalFileStorageService.Common.cs
@@ -14,9 +14,9 @@ public partial class LocalFileStorageService
         return dir;
     }
 
-    public byte[] GetFileBytes(string filePath)
+    public byte[] GetFileBytes(string fileStorageUrl)
     {
-        using var stream = File.OpenRead(filePath);
+        using var stream = File.OpenRead(fileStorageUrl);
         var bytes = new byte[stream.Length];
         stream.Read(bytes, 0, (int)stream.Length);
         return bytes;
diff --git a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Common.cs b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Common.cs
index 0424d287..e94ab6ce 100644
--- a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Common.cs
+++ b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Common.cs
@@ -7,12 +7,11 @@ public partial class TencentCosService
         return $"{CONVERSATION_FOLDER}/{conversationId}/attachments/";
     }
 
-    public byte[] GetFileBytes(string filePath)
+    public byte[] GetFileBytes(string fileStorageUrl)
     {
         try
         {
-            var fileData = _cosClient.BucketClient.DownloadFileBytes(filePath);
-            return fileData;
+            return _cosClient.BucketClient.DownloadFileBytes(fileStorageUrl);
         }
         catch (Exception ex)
         {