diff --git a/excel2xx/__init__.py b/excel2xx/__init__.py
index f99958f..347399e 100644
--- a/excel2xx/__init__.py
+++ b/excel2xx/__init__.py
@@ -7,7 +7,7 @@
 from excel2xx import utils, fields, fieldmeta
 import excel2xx.exporter as exporter
 
-VERSION = "0.11.0"
+VERSION = "0.11.1"
 __author__ = "cupen"
 __email__ = "xcupen@gmail.com"
 
@@ -101,15 +101,36 @@ def fields(self):
 
     def rows(self):
         skipRows = self.__excel.fieldMeta.dataRowIdx
+        emptyRows = []
         for row in self.__sheet.get_rows():
             if skipRows > 0:
                 skipRows -= 1
                 # print(row)
                 continue
 
+            if len(row) <= 0:
+                emptyRows+=1
+                continue
+
+            if self._isEmptyRow(row):
+                emptyRows.append(row)
+                continue
+            elif len(emptyRows) > 0:
+                raise self.throwException(f"Invalid row with empty'{emptyRows[0]}'")
             yield row
         pass
 
+    def _isEmptyRow(self, row):
+        _fields = self.fields()
+        len(_fields)
+        if len(row) > len(_fields):
+            row = row[:len(_fields)]
+        for cell in row:
+            if cell.ctype != xlrd.XL_CELL_EMPTY:
+                return False
+            pass
+        return True
+
     def toList(self):
         return list(iter(self))
 
@@ -159,7 +180,6 @@ def toKV(self):
 
     def toDataFrame(self):
         import pandas
-
         return pandas.DataFrame(self, columns=self.fields().keys())
 
     @property
diff --git a/excel2xx/codegen/__init__.py b/excel2xx/codegen/__init__.py
index 7fa042c..c6dfc7c 100644
--- a/excel2xx/codegen/__init__.py
+++ b/excel2xx/codegen/__init__.py
@@ -11,7 +11,7 @@
 NOTE = "// DONT EDIT: generated by excel2xx/codegen.\n"
 
 
-def generate(src: list, context={}, note=NOTE):
+def generate(src: list, context={}, note=NOTE, encoding="utf-8", newline="\n"):
     """
     generate source code from mako template files
     """
@@ -42,7 +42,7 @@ def generate(src: list, context={}, note=NOTE):
         fpath_new = fpath.replace(".mako", "")
         try:
             text = tmpl.render(**ctx)
-            with open(fpath_new, "w", encoding="utf-8") as fp:
+            with open(fpath_new, "w", encoding=encoding, newline=newline) as fp:
                 if note:
                     fp.write(note)
                 fp.write(text)
diff --git a/setup.py b/setup.py
index 581ede0..d35a793 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
 
 setup(
     name="excel2xx",
-    version="0.11.0",
+    version="0.11.1",
     packages=find_packages(),
     url="https://github.com/cupen/excel2xx",
     license="WTFPL",