diff --git a/Classes/PHPExcel.php b/Classes/PHPExcel.php
index 6c9291d3..70151f42 100644
--- a/Classes/PHPExcel.php
+++ b/Classes/PHPExcel.php
@@ -127,6 +127,11 @@ class PHPExcel
 	}
 
 
+	/**
+	 * Disconnect all worksheets from this PHPExcel workbook object,
+	 *    typically so that the PHPExcel object can be unset
+	 *
+	 */
 	public function disconnectWorksheets() {
 		foreach($this->_workSheetCollection as $k => &$worksheet) {
 			$worksheet->disconnectCells();
@@ -189,7 +194,9 @@ class PHPExcel
     /**
      * Create sheet and add it to this workbook
      *
+	 * @param int|null $iSheetIndex Index where sheet should go (0,1,..., or null for last)
      * @return PHPExcel_Worksheet
+     * @throws Exception
      */
     public function createSheet($iSheetIndex = null)
     {
@@ -491,8 +498,8 @@ class PHPExcel
 	/**
 	 * Remove named range
 	 *
-	 * @param string $namedRange
-	 * @param PHPExcel_Worksheet|null $pSheet. Scope. Use null for global scope.
+	 * @param  string  $namedRange
+	 * @param  PHPExcel_Worksheet|null  $pSheet  Scope: use null for global scope.
 	 * @return PHPExcel
 	 */
 	public function removeNamedRange($namedRange, PHPExcel_Worksheet $pSheet = null) {
@@ -558,7 +565,7 @@ class PHPExcel
 	/**
 	 * Get cellXf by index
 	 *
-	 * @param int $index
+	 * @param int $pIndex
 	 * @return PHPExcel_Style
 	 */
 	public function getCellXfByIndex($pIndex = 0)
@@ -599,7 +606,7 @@ class PHPExcel
 	/**
 	 * Add a cellXf to the workbook
 	 *
-	 * @param PHPExcel_Style
+	 * @param PHPExcel_Style $style
 	 */
 	public function addCellXf(PHPExcel_Style $style)
 	{
diff --git a/Classes/PHPExcel/Worksheet.php b/Classes/PHPExcel/Worksheet.php
index e28a983e..1474d592 100644
--- a/Classes/PHPExcel/Worksheet.php
+++ b/Classes/PHPExcel/Worksheet.php
@@ -369,6 +369,11 @@ class PHPExcel_Worksheet implements PHPExcel_IComparable
 	}
 
 
+	/**
+	 * Disconnect all cells from this PHPExcel_Worksheet object,
+	 *    typically so that the worksheet object can be unset
+	 *
+	 */
 	public function disconnectCells() {
 		$this->_cellCollection->unsetWorksheetCells();
 		$this->_cellCollection = null;
diff --git a/Classes/PHPExcel/Writer/CSV.php b/Classes/PHPExcel/Writer/CSV.php
index cee94383..27a71b04 100644
--- a/Classes/PHPExcel/Writer/CSV.php
+++ b/Classes/PHPExcel/Writer/CSV.php
@@ -95,7 +95,7 @@ class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param	string		$pFileName
+	 * @param	string		$pFilename
 	 * @throws	Exception
 	 */
 	public function save($pFilename = null) {
diff --git a/Classes/PHPExcel/Writer/Excel2007.php b/Classes/PHPExcel/Writer/Excel2007.php
index 3b08603d..d2e0eb7d 100644
--- a/Classes/PHPExcel/Writer/Excel2007.php
+++ b/Classes/PHPExcel/Writer/Excel2007.php
@@ -190,7 +190,7 @@ class PHPExcel_Writer_Excel2007 implements PHPExcel_Writer_IWriter
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param 	string 		$pFileName
+	 * @param 	string 		$pFilename
 	 * @throws 	Exception
 	 */
 	public function save($pFilename = null)
diff --git a/Classes/PHPExcel/Writer/Excel5.php b/Classes/PHPExcel/Writer/Excel5.php
index aab6aa79..7a6c3a71 100644
--- a/Classes/PHPExcel/Writer/Excel5.php
+++ b/Classes/PHPExcel/Writer/Excel5.php
@@ -109,7 +109,7 @@ class PHPExcel_Writer_Excel5 implements PHPExcel_Writer_IWriter
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param	string		$pFileName
+	 * @param	string		$pFilename
 	 * @throws	Exception
 	 */
 	public function save($pFilename = null) {
diff --git a/Classes/PHPExcel/Writer/HTML.php b/Classes/PHPExcel/Writer/HTML.php
index b3d72807..02e91707 100644
--- a/Classes/PHPExcel/Writer/HTML.php
+++ b/Classes/PHPExcel/Writer/HTML.php
@@ -145,7 +145,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param	string		$pFileName
+	 * @param	string		$pFilename
 	 * @throws	Exception
 	 */
 	public function save($pFilename = null) {
@@ -189,6 +189,9 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 
 	/**
 	 * Map VAlign
+	 *
+	 * @param	string		$vAlign		Vertical alignment
+	 * @return string
 	 */
 	private function _mapVAlign($vAlign) {
 		switch ($vAlign) {
@@ -203,6 +206,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Map HAlign
 	 *
+	 * @param	string		$hAlign		Horizontal alignment
 	 * @return string|false
 	 */
 	private function _mapHAlign($hAlign) {
diff --git a/Classes/PHPExcel/Writer/IWriter.php b/Classes/PHPExcel/Writer/IWriter.php
index 69e64906..28ab4198 100644
--- a/Classes/PHPExcel/Writer/IWriter.php
+++ b/Classes/PHPExcel/Writer/IWriter.php
@@ -38,7 +38,7 @@ interface PHPExcel_Writer_IWriter
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param 	string 		$pFileName
+	 * @param 	string 		$pFilename
 	 * @throws 	Exception
 	 */
 	public function save($pFilename = null);
diff --git a/Classes/PHPExcel/Writer/PDF.php b/Classes/PHPExcel/Writer/PDF.php
index 0b9c2452..4d334ebf 100644
--- a/Classes/PHPExcel/Writer/PDF.php
+++ b/Classes/PHPExcel/Writer/PDF.php
@@ -210,7 +210,7 @@ class PHPExcel_Writer_PDF extends PHPExcel_Writer_HTML implements PHPExcel_Write
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param 	string 		$pFileName
+	 * @param 	string 		$pFilename    Filename for the saved file
 	 * @throws 	Exception
 	 */
 	public function save($pFilename = null) {