diff --git a/Classes/PHPExcel/Writer/OpenDocument/Cell/Comment.php b/Classes/PHPExcel/Writer/OpenDocument/Cell/Comment.php
new file mode 100644
index 0000000..88406ed
--- /dev/null
+++ b/Classes/PHPExcel/Writer/OpenDocument/Cell/Comment.php
@@ -0,0 +1,63 @@
+<?php
+/**
+ * PHPExcel
+ *
+ * Copyright (c) 2006 - 2014 PHPExcel
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Writer_OpenDocument
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
+ * @version    ##VERSION##, ##DATE##
+ */
+
+
+/**
+ * PHPExcel_Writer_OpenDocument_Cell_Comment
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Writer_OpenDocument
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @author     Alexander Pervakov <frost-nzcr4@jagmort.com>
+ */
+class PHPExcel_Writer_OpenDocument_Cell_Comment
+{
+    public static function write(PHPExcel_Shared_XMLWriter $objWriter, PHPExcel_Cell $cell)
+    {
+        $comments = $cell->getWorksheet()->getComments();
+        if (!isset($comments[$cell->getCoordinate()])) {
+            return;
+        }
+        $comment = $comments[$cell->getCoordinate()];
+
+        $objWriter->startElement('office:annotation');
+            //$objWriter->writeAttribute('draw:style-name', 'gr1');
+            //$objWriter->writeAttribute('draw:text-style-name', 'P1');
+            $objWriter->writeAttribute('svg:width', $comment->getWidth());
+            $objWriter->writeAttribute('svg:height', $comment->getHeight());
+            $objWriter->writeAttribute('svg:x', $comment->getMarginLeft());
+            $objWriter->writeAttribute('svg:y', $comment->getMarginTop());
+            //$objWriter->writeAttribute('draw:caption-point-x', $comment->getMarginLeft());
+            //$objWriter->writeAttribute('draw:caption-point-y', $comment->getMarginTop());
+                $objWriter->writeElement('dc:creator', $comment->getAuthor());
+                // TODO: Not realized in PHPExcel_Comment yet.
+                //$objWriter->writeElement('dc:date', $comment->getDate());
+                $objWriter->writeElement('text:p', $comment->getText()->getPlainText());
+                    //$objWriter->writeAttribute('draw:text-style-name', 'P1');
+        $objWriter->endElement();
+    }
+}
diff --git a/Classes/PHPExcel/Writer/OpenDocument/Content.php b/Classes/PHPExcel/Writer/OpenDocument/Content.php
index 932f2ca..8666f22 100644
--- a/Classes/PHPExcel/Writer/OpenDocument/Content.php
+++ b/Classes/PHPExcel/Writer/OpenDocument/Content.php
@@ -230,6 +230,7 @@ class PHPExcel_Writer_OpenDocument_Content extends PHPExcel_Writer_OpenDocument_
                     $objWriter->writeElement('text:p', $cell->getValue());
                     break;
             }
+            PHPExcel_Writer_OpenDocument_Cell_Comment::write($objWriter, $cell);
             $objWriter->endElement();
             $prev_column = $column;
             $cells->next();