diff --git a/Classes/PHPExcel/Worksheet.php b/Classes/PHPExcel/Worksheet.php
index 2073910..d14e0da 100644
--- a/Classes/PHPExcel/Worksheet.php
+++ b/Classes/PHPExcel/Worksheet.php
@@ -2385,7 +2385,6 @@ class PHPExcel_Worksheet implements PHPExcel_IComparable
 	public function rangeToArray($pRange = 'A1', $nullValue = null, $calculateFormulas = true, $formatData = true, $returnCellRef = false) {
 		// Returnvalue
 		$returnValue = array();
-
 		//	Identify the range that we need to extract from the worksheet
 		list($rangeStart, $rangeEnd) = PHPExcel_Cell::rangeBoundaries($pRange);
 		$minCol = PHPExcel_Cell::stringFromColumnIndex($rangeStart[0] -1);
@@ -2394,7 +2393,6 @@ class PHPExcel_Worksheet implements PHPExcel_IComparable
 		$maxRow = $rangeEnd[1];
 
 		$maxCol++;
-
 		// Loop through rows
 		$r = -1;
 		for ($row = $minRow; $row <= $maxRow; ++$row) {
@@ -2503,6 +2501,8 @@ class PHPExcel_Worksheet implements PHPExcel_IComparable
 	 * @return PHPExcel_Worksheet
 	 */
 	public function garbageCollect() {
+		// Flush cache
+		$this->_cellCollection->getCacheData('A1');
 		// Build a reference table from images
 //		$imageCoordinates = array();
 //		$iterator = $this->getDrawingCollection()->getIterator();
diff --git a/changelog.txt b/changelog.txt
index 78c97c3..8c02994 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -31,6 +31,7 @@ Fixed in develop branch:
 - General:  (kea)      Work item GH-69 - Improved AdvancedValueBinder for currency
 - Bugfix:   (techhead) Work item GH-70 - Fixed formula/formatting bug when removing rows
 - Bugfix:   (alexgann) Work item GH-63 - Fix to cellExists for non-existent namedRanges
+- Bugfix:   (MBaker)   Work item 18844 - cache_in_memory_gzip "eats" last worksheet line, cache_in_memory doesn't
 
 
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