last ...

Interfaces/Extractors/IXAudioFileContentExtractor.cs

@@ -0,0 +1,5 @@
+namespace xAiApi.Interfaces.Extractors
+{
+    public interface IXAudioFileContentExtractor : IXFileContentExtractorBase
+    { }
+}

Interfaces/Extractors/IXDocxFileContentExtractor.cs

@@ -1,5 +1,5 @@
 namespace xAiApi.Interfaces.Extractors
 {
-    public interface IXDocxFileContentExtractor : IXFileContentExtractor
+    public interface IXDocxFileContentExtractor : IXFileContentExtractorBase
     { }
 }

Interfaces/Extractors/IXExcelFileContentExtractor.cs

@@ -1,5 +1,5 @@
 namespace xAiApi.Interfaces.Extractors
 {
-    public interface IXExcelFileContentExtractor : IXFileContentExtractor
+    public interface IXExcelFileContentExtractor : IXFileContentExtractorBase
     { }
 }

Interfaces/Extractors/IXFileContentExtractor.cs

@@ -1,3 +1,5 @@
+using System.Collections;
+using System.Collections.Generic;
 using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
@@ -6,9 +8,9 @@ using xAiModels.Models;
 namespace xAiApi.Interfaces.Extractors
 {
     /// <summary>
-    /// a Service for Extracting File Content ...
+    /// a Base Service for Extracting File Content ...
     /// </summary>
-    public interface IXFileContentExtractor
+    public interface IXFileContentExtractorBase
     {
         /// <summary>
         /// Check if this extractor supports the specified MIME type ...
@@ -39,4 +41,54 @@ namespace xAiApi.Interfaces.Extractors
             CancellationToken cancellationToken = default
         );
     }
+
+    /// <summary>
+    /// a Service for Extracting File Content ...
+    /// </summary>
+    public interface IXFileContentExtractor
+    {
+        /// <summary>
+        /// Check if this extractor supports the specified MIME type ...
+        /// </summary>
+        /// <param name="mimeType"></param>
+        /// <param name="extractors"></param>
+        /// <returns></returns>
+        bool CanExtract(
+            string mimeType,
+            string[] extractors = null
+        );
+
+        /// <summary>
+        /// Extract text content from file stream ...
+        /// </summary>
+        /// <param name="fileStream"></param>
+        /// <param name="mimeType"></param>
+        /// <param name="extractors"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<string> ExtractAsync(
+            Stream fileStream,
+            string mimeType,
+            string[] extractors = null,
+            CancellationToken cancellationToken = default
+        );
+
+        /// <summary>
+        /// Extract content from stream as Rich Result ...
+        /// </summary>
+        /// <param name="fileStream"></param>
+        /// <param name="fileName"></param>
+        /// <param name="mimeType"></param>
+        /// <param name="extractors"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<XFileExtractionResult> ExtractRichAsync(
+            Stream fileStream,
+            string fileName,
+            string mimeType,
+            string[] extractors = null,
+            CancellationToken cancellationToken = default
+        );
+
+    }
 }

Interfaces/Extractors/IXImageFileContentExtractor.cs

@@ -1,5 +1,5 @@
 namespace xAiApi.Interfaces.Extractors
 {
-    public interface IXImageFileContentExtractor : IXFileContentExtractor
+    public interface IXImageFileContentExtractor : IXFileContentExtractorBase
     { }
 }

Interfaces/Extractors/IXPdfFileContentExtractor.cs

@@ -1,5 +1,5 @@
 namespace xAiApi.Interfaces.Extractors
 {
-    public interface IXPdfFileContentExtractor : IXFileContentExtractor
+    public interface IXPdfFileContentExtractor : IXFileContentExtractorBase
     { }
 }

Interfaces/Extractors/IXPlainTextFileContentExtractor.cs

@@ -1,5 +1,5 @@
 namespace xAiApi.Interfaces.Extractors
 {
-    public interface IXPlainTextFileContentExtractor : IXFileContentExtractor
+    public interface IXPlainTextFileContentExtractor : IXFileContentExtractorBase
     { }
 }

Interfaces/Extractors/IXVisionFileContentExtractor.cs

@@ -0,0 +1,5 @@
+namespace xAiApi.Interfaces.Extractors
+{
+    public interface IXVisionFileContentExtractor : IXFileContentExtractorBase
+    { }
+}

Interfaces/IXAiServiceBase.cs

@@ -51,19 +51,6 @@ namespace xAiApi.Interfaces
             CancellationToken cancellationToken = default
         );
 
-        /// <summary>
-        /// Get LLM Client instance for Communicating with LLM ...
-        /// </summary>
-        /// <returns></returns>
-        IChatClient GetClient();
-
-        /// <summary>
-        /// Create Custom HttpClient for Communicating with LLM API ...
-        /// </summary>
-        /// <param name="url"></param>
-        /// <returns></returns>
-        HttpClient GetHttpClient(string url = null);
-
         /// <summary>
         /// Prepare a Message History List for LLM Communication based on Prompt ...
         /// </summary>
@@ -209,6 +196,22 @@ namespace xAiApi.Interfaces
             CancellationToken cancellationToken = default
         );
         #endregion
+        
+        //
+        #region Content Extraction ...
+        /// <summary>
+        /// Try to Extract Files Content ...
+        /// </summary>
+        /// <param name="files"></param>
+        /// <param name="extractors"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<string> ExtractContent(
+            IFormFileCollection files,
+            string[] extractors = null,
+            CancellationToken cancellationToken = default            
+        );
+        #endregion
 
         //
         #region Data Actions ...

Interfaces/IXAiServiceControllerBase.cs

@@ -5,8 +5,8 @@ using xAiModels.Models;
 using xAiModels.Models.Dtos;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
-using System.Collections.Generic;
 using Microsoft.AspNetCore.Http;
+using System.Collections.Generic;
 
 namespace xAiApi.Interfaces
 {
@@ -152,6 +152,24 @@ namespace xAiApi.Interfaces
         );
         #endregion
 
+        //
+        #region Content Extraction ...
+        /// <summary>
+        /// Extract Files Content ...
+        /// </summary>
+        /// <param name="files"></param>
+        /// <param name="extractors"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        [HttpPost("ExtractContent")]
+        [Consumes("multipart/form-data")]
+        Task<ActionResult<string>> ExtractContent(
+            [FromForm] IFormFileCollection files,
+            [FromForm] string extractors = null,
+            CancellationToken cancellationToken = default
+        );
+        #endregion
+
         //
         #region Data Actions ...
         /// <summary>