diff --git a/Concretes/FileStorage.cs b/Concretes/FileStorage.cs
index 1744c56..4fd50a5 100644
--- a/Concretes/FileStorage.cs
+++ b/Concretes/FileStorage.cs
@@ -26,44 +26,24 @@ public FileUploadResult UploadFile(IFormFile file, string directoryPath)
                 _fileStorageOptions.GlobalFileExtensionFilter);
         }
 
-        var combinedDirectoryPath = string.IsNullOrEmpty(_fileStorageOptions.BaseFolderPath)
-            ? directoryPath
-            : Path.Combine(_fileStorageOptions.BaseFolderPath, directoryPath);
-        var uploadDirectoryPath = Path.Combine(Environment.CurrentDirectory, combinedDirectoryPath);
-
-        if (!File.Exists(uploadDirectoryPath)) Directory.CreateDirectory(uploadDirectoryPath);
-
-        var fileNameGenerated = FileStorageHelpers.GenerateFileName(file.FileName);
-        var fullPath = Path.Combine(uploadDirectoryPath, fileNameGenerated);
-
-        using (var stream = new FileStream(fullPath, FileMode.Create))
-        {
-            file.CopyTo(stream);
-        }
-
-        var filePath = fullPath.Replace(Environment.CurrentDirectory, "").Remove(0, 1);
-
-        return new FileUploadResult(fileName: file.FileName,
-            filePath: filePath,
-            fullPath: fullPath,
-            contentType: file.ContentType,
-            fileNameGenerated: fileNameGenerated);
+        return Upload(file, directoryPath);
     }
 
-    public FileUploadResult UploadFile(IFormFile file, string directoryPath, string[] extensionFilter)
+    public FileUploadResult UploadFile(IFormFile file, string directoryPath, string[] extensionFilter,
+        bool includeGlobalFileExtensionFilter = true)
     {
         ArgumentNullException.ThrowIfNull(file, nameof(file));
         ArgumentNullException.ThrowIfNull(directoryPath, nameof(directoryPath));
 
-        string fileExtension = Path.GetExtension(file.FileName).ToLower();
-        if (_fileStorageOptions.GlobalFileExtensionFilter is not null)
+        var fileExtension = Path.GetExtension(file.FileName).ToLower();
+        if (_fileStorageOptions.GlobalFileExtensionFilter is not null && includeGlobalFileExtensionFilter)
         {
             extensionFilter = extensionFilter.Union(_fileStorageOptions.GlobalFileExtensionFilter).ToArray();
         }
 
         FileStorageHelpers.CheckFileExtension(fileExtension, extensionFilter);
 
-        return UploadFile(file, directoryPath);
+        return Upload(file, directoryPath);
     }
 
     public void DeleteFile(string filePath)
@@ -81,4 +61,30 @@ public Stream GetFile(string filePath)
 
         return new FileStream(filePath, FileMode.Open);
     }
+    
+    private FileUploadResult Upload(IFormFile file, string directoryPath)
+    {
+        var combinedDirectoryPath = string.IsNullOrEmpty(_fileStorageOptions.BaseFolderPath)
+            ? directoryPath
+            : Path.Combine(_fileStorageOptions.BaseFolderPath, directoryPath);
+        var uploadDirectoryPath = Path.Combine(Environment.CurrentDirectory, combinedDirectoryPath);
+
+        if (!File.Exists(uploadDirectoryPath)) Directory.CreateDirectory(uploadDirectoryPath);
+
+        var fileNameGenerated = FileStorageHelpers.GenerateFileName(file.FileName);
+        var fullPath = Path.Combine(uploadDirectoryPath, fileNameGenerated);
+
+        using (var stream = new FileStream(fullPath, FileMode.Create))
+        {
+            file.CopyTo(stream);
+        }
+
+        var filePath = fullPath.Replace(Environment.CurrentDirectory, "").Remove(0, 1);
+
+        return new FileUploadResult(fileName: file.FileName,
+            filePath: filePath,
+            fullPath: fullPath,
+            contentType: file.ContentType,
+            fileNameGenerated: fileNameGenerated);
+    }
 }
\ No newline at end of file
diff --git a/Interfaces/IFileStorage.cs b/Interfaces/IFileStorage.cs
index a004954..3ae9702 100644
--- a/Interfaces/IFileStorage.cs
+++ b/Interfaces/IFileStorage.cs
@@ -6,19 +6,28 @@ namespace LocalFileStorage.Interfaces;
 public interface IFileStorage
 {
     /// <summary>
-    /// This method is used to upload a file to the file storage.
+    /// Uploads a file to the specified directory.
     /// </summary>
-    /// <param name="file">The file to be uploaded.</param>
+    /// <param name="file">The <see cref="IFormFile"/> instance representing the file to be uploaded.</param>
     /// <param name="directoryPath">The path to upload the file to.</param>
+    /// <returns>Returns a <see cref="FileUploadResult"/> indicating the outcome of the file upload operation.</returns>
     FileUploadResult UploadFile(IFormFile file, string directoryPath);
 
     /// <summary>
-    /// This method is used to upload a file to the file storage.
+    /// Uploads a file to the specified directory with optional file extension filtering.
     /// </summary>
-    /// <param name="file">The file to be uploaded.</param>
+    /// <param name="file">The <see cref="IFormFile"/> instance representing the file to be uploaded.</param>
     /// <param name="directoryPath">The path to upload the file to.</param>
-    /// <param name="extensionFilter">The file extensions that are allowed to be uploaded.</param>
-    FileUploadResult UploadFile(IFormFile file, string directoryPath, string[] extensionFilter);
+    /// <param name="extensionFilter">An array of file extensions that are allowed to be uploaded.</param>
+    /// <param name="includeGlobalFileExtensionFilter">
+    ///     Indicates whether to include the global file extension filter settings defined at application level.
+    ///     If set to true (default), both the global file extension filter and the extensions provided in the 'extensionFilter' parameter will be enforced.
+    ///     If set to false, only the extensions provided in the 'extensionFilter' parameter will be considered.
+    /// </param>
+    /// <returns>Returns a <see cref="FileUploadResult"/> indicating the outcome of the file upload operation.</returns>
+    FileUploadResult UploadFile(IFormFile file, string directoryPath, string[] extensionFilter,
+        bool includeGlobalFileExtensionFilter = true);
+
 
     /// <summary>
     /// This method is used to delete a file from the file storage.
@@ -32,4 +41,4 @@ public interface IFileStorage
     /// <param name="filePath">The path of the file to be retrieved.</param>
     /// <returns>The file stream of the file.</returns>
     Stream GetFile(string filePath);
-}
+}
\ No newline at end of file
diff --git a/LocalFileStorage.csproj b/LocalFileStorage.csproj
index 0d044ca..149334b 100644
--- a/LocalFileStorage.csproj
+++ b/LocalFileStorage.csproj
@@ -7,12 +7,10 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <NoWarn>$(NoWarn);1591</NoWarn>
     <PackageId>rknyryn.LocalFileStorage</PackageId>
-    <Version>3.0.0</Version>
+    <Version>3.1.0</Version>
     <PackageReleaseNotes>
-      - Transitioned services from 'AddScoped' to 'AddSingleton' for enhanced performance.
-      - Renamed the 'path' parameter to 'directoryPath' for more clarity.
-      - Implemented 'Path.IsRooted' check for the base folder path to ensure valid directory paths.
-      - Enhanced the package functionality to return both relative and full file paths.
+      - File extension filter bug fixed.
+      - Include global extension filter parameter added.
     </PackageReleaseNotes>
     <Authors>Kaan Yarayan</Authors>
     <Description>Local File Storage</Description>
diff --git a/README.md b/README.md
index c1f84bf..0e6af87 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,8 @@ public class FileStorageController : ControllerBase
     public FileUploadResult UploadFile(IFormFile uploadedFile)
     {
         FileUploadResult fileUploadResult = _fileStorage.UploadFile(file: uploadedFile, directoryPath: "documents");
-        // FileUploadResult fileUploadResult = fileStorage.UploadFile(file: uploadedFile, directoryPath: "documents", extensionFilter: [".jpg", ".png"]);
+        // FileUploadResult fileUploadResult = fileStorage.UploadFile(file: uploadedFile, directoryPath: "documents", extensionFilter: [".jpg"]);
+        // FileUploadResult fileUploadResult = fileStorage.UploadFile(file: uploadedFile, directoryPath: "documents", extensionFilter: [".jpg"], includeGlobalFileExtensionFilter: false);
 
         return fileUploadResult;
     }