diff --git a/ExcelHelper/ExcelHelperFW/ExcelHelper.cs b/ExcelHelper/ExcelHelperFW/ExcelHelper.cs
index 3118b77..6c6ed8f 100644
--- a/ExcelHelper/ExcelHelperFW/ExcelHelper.cs
+++ b/ExcelHelper/ExcelHelperFW/ExcelHelper.cs
@@ -25,7 +25,7 @@ namespace ExcelHelperFW
         /// <param name="tempPath">copy path</param>
         /// <returns></returns>
         /// <exception cref="Exception"></exception>
-        public List<Dictionary<string, string>> GetData(string sourcePath, string sheetName, bool removeHeader, int rowStartPosition = 1, string tempPath = "./temp_file.xlsx")
+        public List<Dictionary<string, string>> GetData(string sourcePath, string sheetName, bool removeHeader, int rowStartPosition = 1, Func<Dictionary<string, string>, bool> continueFunc = null, string tempPath = "./temp_file.xlsx")
         {
             File.Copy(sourcePath, tempPath, true);
 
@@ -38,7 +38,7 @@ namespace ExcelHelperFW
                 Sheet sheet = workbookPart.Workbook.Descendants<Sheet>().FirstOrDefault(s => s.Name == sheetName);
 
                 if (sheet == null)
-                    throw new Exception("Cannot find sheet.");
+                    throw new Exception($"Cannot find sheet. (Sheet name: {sheetName})");
 
                 WorksheetPart worksheetPart = (WorksheetPart)workbookPart.GetPartById(sheet.Id);
                 Worksheet worksheet = worksheetPart.Worksheet;
@@ -53,6 +53,9 @@ namespace ExcelHelperFW
                     if (rowPairs == null || rowPairs.Count < 1)
                         continue;
 
+                    if (continueFunc != null && continueFunc(rowPairs))
+                        continue;
+
                     data.Add(rowPairs);
                 }
             }