update 20250406

DOCGEN/clsDocGet.cs

@@ -222,6 +222,7 @@ namespace DOCGEN
             return ReturnValue;
         }
 
+        public string docfiletype { get; set; } = "";
         private bool Is_WordDocument(MemoryStream stream)
         {
             Syncfusion.DocIO.DLS.WordDocument WordDocument = new Syncfusion.DocIO.DLS.WordDocument();
@@ -230,6 +231,7 @@ namespace DOCGEN
                 WordDocument.Open(stream, FormatType.Automatic);
                 string type = "";
                 type = WordDocument.ActualFormatType.ToString();
+                docfiletype = type;
                 return true;
             }
             catch
@@ -243,6 +245,24 @@ namespace DOCGEN
             }
         }
 
+        public string check_office_application(string source)
+        {
+            MemoryStream ms = new MemoryStream(Convert.FromBase64String(source));
+            if (Is_WordDocument(ms))
+            {
+                ms.Close();
+                ms = null;
+                return "Word";
+            }
+            if (Is_ExcelDocument(ms))
+            {
+                ms.Close();
+                ms = null;
+                return "Excel";
+            }
+            return "";
+        }
+
         private bool Is_ExcelDocument(MemoryStream stream)
         {
             ExcelEngine excelEngine = new ExcelEngine();
@@ -254,7 +274,7 @@ namespace DOCGEN
                 string type = "";
                 workbook = application.Workbooks.Open(stream);
                 type = workbook.Version.ToString();
-
+                docfiletype = type;
                 return true;
             }
             catch