diff --git a/Classes/PHPExcel/Reader/Excel2003XML.php b/Classes/PHPExcel/Reader/Excel2003XML.php
index ec31c0f4..95eb9369 100644
--- a/Classes/PHPExcel/Reader/Excel2003XML.php
+++ b/Classes/PHPExcel/Reader/Excel2003XML.php
@@ -659,40 +659,56 @@ class PHPExcel_Reader_Excel2003XML implements PHPExcel_Reader_IReader
 							}
 
 							if ($hasCalculatedValue) {
+//								echo 'FORMULA<br />';
 								$type = PHPExcel_Cell_DataType::TYPE_FORMULA;
 								$columnNumber = PHPExcel_Cell::columnIndexFromString($columnID);
-								//	Convert R1C1 style references to A1 style references (but only when not quoted)
-								$temp = explode('"',$cellDataFormula);
-								$key = false;
-								foreach($temp as &$value) {
-									//	Only replace in alternate array entries (i.e. non-quoted blocks)
-									if ($key = !$key) {
-										preg_match_all('/(R(\[?-?\d*\]?))(C(\[?-?\d*\]?))/',$value, $cellReferences,PREG_SET_ORDER+PREG_OFFSET_CAPTURE);
-										//	Reverse the matches array, otherwise all our offsets will become incorrect if we modify our way
-										//		through the formula from left to right. Reversing means that we work right to left.through
-										//		the formula
-										$cellReferences = array_reverse($cellReferences);
-										//	Loop through each R1C1 style reference in turn, converting it to its A1 style equivalent,
-										//		then modify the formula to use that new reference
-										foreach($cellReferences as $cellReference) {
-											$rowReference = $cellReference[2][0];
-											//	Empty R reference is the current row
-											if ($rowReference == '') $rowReference = $rowID;
-											//	Bracketed R references are relative to the current row
-											if ($rowReference{0} == '[') $rowReference = $rowID + trim($rowReference,'[]');
-											$columnReference = $cellReference[4][0];
-											//	Empty C reference is the current column
-											if ($columnReference == '') $columnReference = $columnNumber;
-											//	Bracketed C references are relative to the current column
-											if ($columnReference{0} == '[') $columnReference = $columnNumber + trim($columnReference,'[]');
-											$A1CellReference = PHPExcel_Cell::stringFromColumnIndex($columnReference-1).$rowReference;
-												$value = substr_replace($value,$A1CellReference,$cellReference[0][1],strlen($cellReference[0][0]));
+								if (substr($cellDataFormula,0,3) == 'of:') {
+									$cellDataFormula = substr($cellDataFormula,3);
+//									echo 'Before: ',$cellDataFormula,'<br />';
+									$temp = explode('"',$cellDataFormula);
+									$key = false;
+									foreach($temp as &$value) {
+										//	Only replace in alternate array entries (i.e. non-quoted blocks)
+										if ($key = !$key) {
+											$value = str_replace(array('[.','.',']'),'',$value);
+										}
+									}
+								} else {
+									//	Convert R1C1 style references to A1 style references (but only when not quoted)
+//									echo 'Before: ',$cellDataFormula,'<br />';
+									$temp = explode('"',$cellDataFormula);
+									$key = false;
+									foreach($temp as &$value) {
+										//	Only replace in alternate array entries (i.e. non-quoted blocks)
+										if ($key = !$key) {
+											preg_match_all('/(R(\[?-?\d*\]?))(C(\[?-?\d*\]?))/',$value, $cellReferences,PREG_SET_ORDER+PREG_OFFSET_CAPTURE);
+											//	Reverse the matches array, otherwise all our offsets will become incorrect if we modify our way
+											//		through the formula from left to right. Reversing means that we work right to left.through
+											//		the formula
+											$cellReferences = array_reverse($cellReferences);
+											//	Loop through each R1C1 style reference in turn, converting it to its A1 style equivalent,
+											//		then modify the formula to use that new reference
+											foreach($cellReferences as $cellReference) {
+												$rowReference = $cellReference[2][0];
+												//	Empty R reference is the current row
+												if ($rowReference == '') $rowReference = $rowID;
+												//	Bracketed R references are relative to the current row
+												if ($rowReference{0} == '[') $rowReference = $rowID + trim($rowReference,'[]');
+												$columnReference = $cellReference[4][0];
+												//	Empty C reference is the current column
+												if ($columnReference == '') $columnReference = $columnNumber;
+												//	Bracketed C references are relative to the current column
+												if ($columnReference{0} == '[') $columnReference = $columnNumber + trim($columnReference,'[]');
+												$A1CellReference = PHPExcel_Cell::stringFromColumnIndex($columnReference-1).$rowReference;
+													$value = substr_replace($value,$A1CellReference,$cellReference[0][1],strlen($cellReference[0][0]));
+											}
 										}
 									}
 								}
 								unset($value);
 								//	Then rebuild the formula string
 								$cellDataFormula = implode('"',$temp);
+//								echo 'After: ',$cellDataFormula,'<br />';
 							}
 
 //							echo 'Cell '.$columnID.$rowID.' is a '.$type.' with a value of '.(($hasCalculatedValue) ? $cellDataFormula : $cellValue).'<br />';
diff --git a/Tests/XMLReader.php b/Tests/XMLReader.php
index 82e0eab9..5f49530a 100644
--- a/Tests/XMLReader.php
+++ b/Tests/XMLReader.php
@@ -35,7 +35,16 @@ require_once '../Classes/PHPExcel/IOFactory.php';
 
 
 echo date('H:i:s') . " Load from XML file\n";
-$objPHPExcel = PHPExcel_IOFactory::load("XMLTest.xml");
+$inputFileName = "XMLTest.xml";
+
+/**  Identify the type of $inputFileName  **/
+$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
+echo 'Loading ',$inputFileName,' using ',$inputFileType," Reader\n";
+
+/**  Create a new Reader of the type that has been identified  **/
+$objReader = PHPExcel_IOFactory::createReader($inputFileType);
+/**  Load $inputFileName to a PHPExcel Object  **/
+$objPHPExcel = $objReader->load($inputFileName);
 
 echo date('H:i:s') . " Write to Excel2007 format\n";
 $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');