diff --git a/src/Spout/Reader/CSV/RowIterator.php b/src/Spout/Reader/CSV/RowIterator.php
index d768936..04ec4f5 100644
--- a/src/Spout/Reader/CSV/RowIterator.php
+++ b/src/Spout/Reader/CSV/RowIterator.php
@@ -27,8 +27,8 @@ class RowIterator implements IteratorInterface
     /** @var int Number of read rows */
     protected $numReadRows = 0;
 
-    /** @var Row|null Buffer used to store the row data, while checking if there are more rows to read */
-    protected $rowDataBuffer;
+    /** @var Row|null Buffer used to store the current row, while checking if there are more rows to read */
+    protected $rowBuffer;
 
     /** @var bool Indicates whether all rows have been read */
     protected $hasReachedEndOfFile = false;
@@ -89,7 +89,7 @@ class RowIterator implements IteratorInterface
         $this->rewindAndSkipBom();
 
         $this->numReadRows = 0;
-        $this->rowDataBuffer = null;
+        $this->rowBuffer = null;
 
         $this->next();
     }
@@ -148,7 +148,7 @@ class RowIterator implements IteratorInterface
         if ($rowData !== false) {
             // str_replace will replace NULL values by empty strings
             $rowDataBufferAsArray = str_replace(null, null, $rowData);
-            $this->rowDataBuffer = $this->entityFactory->createRowFromArray($rowDataBufferAsArray);
+            $this->rowBuffer = $this->entityFactory->createRowFromArray($rowDataBufferAsArray);
             $this->numReadRows++;
         } else {
             // If we reach this point, it means end of file was reached.
@@ -226,7 +226,7 @@ class RowIterator implements IteratorInterface
      */
     public function current()
     {
-        return $this->rowDataBuffer;
+        return $this->rowBuffer;
     }
 
     /**
diff --git a/src/Spout/Reader/Common/Entity/Row.php b/src/Spout/Reader/Common/Entity/Row.php
index 1663a95..818cfdd 100644
--- a/src/Spout/Reader/Common/Entity/Row.php
+++ b/src/Spout/Reader/Common/Entity/Row.php
@@ -29,7 +29,7 @@ class Row
 
     /**
      * @param Cell[] $cells
-     * @return $this
+     * @return Row
      */
     public function setCells(array $cells)
     {
@@ -41,6 +41,19 @@ class Row
         return $this;
     }
 
+    /**
+     * @param Cell $cell
+     * @param mixed $cellIndex
+     * @parma int $cellIndex
+     * @return Row
+     */
+    public function setCellAtIndex(Cell $cell, $cellIndex)
+    {
+        $this->cells[$cellIndex] = $cell;
+
+        return $this;
+    }
+
     /**
      * @param Cell $cell
      * @return Row
diff --git a/src/Spout/Reader/XLSX/Creator/InternalEntityFactory.php b/src/Spout/Reader/XLSX/Creator/InternalEntityFactory.php
index 98b7bb7..db402ad 100644
--- a/src/Spout/Reader/XLSX/Creator/InternalEntityFactory.php
+++ b/src/Spout/Reader/XLSX/Creator/InternalEntityFactory.php
@@ -3,7 +3,9 @@
 namespace Box\Spout\Reader\XLSX\Creator;
 
 use Box\Spout\Reader\Common\Creator\InternalEntityFactoryInterface;
+use Box\Spout\Reader\Common\Entity\Cell;
 use Box\Spout\Reader\Common\Entity\Options;
+use Box\Spout\Reader\Common\Entity\Row;
 use Box\Spout\Reader\Common\XMLProcessor;
 use Box\Spout\Reader\Wrapper\XMLReader;
 use Box\Spout\Reader\XLSX\Manager\SharedStringsManager;
@@ -85,6 +87,7 @@ class InternalEntityFactory implements InternalEntityFactoryInterface
         $xmlProcessor = $this->createXMLProcessor($xmlReader);
 
         $styleManager = $this->managerFactory->createStyleManager($filePath, $this);
+        $rowManager = $this->managerFactory->createRowManager($this);
         $shouldFormatDates = $optionsManager->getOption(Options::SHOULD_FORMAT_DATES);
         $shouldUse1904Dates = $optionsManager->getOption(Options::SHOULD_USE_1904_DATES);
 
@@ -103,10 +106,30 @@ class InternalEntityFactory implements InternalEntityFactoryInterface
             $shouldPreserveEmptyRows,
             $xmlReader,
             $xmlProcessor,
-            $cellValueFormatter
+            $cellValueFormatter,
+            $rowManager,
+            $this
         );
     }
 
+    /**
+     * @param Cell[] $cells
+     * @return Row
+     */
+    public function createRow(array $cells)
+    {
+        return new Row($cells);
+    }
+
+    /**
+     * @param mixed $cellValue
+     * @return Cell
+     */
+    public function createCell($cellValue)
+    {
+        return new Cell($cellValue);
+    }
+
     /**
      * @return \ZipArchive
      */
diff --git a/src/Spout/Reader/XLSX/Creator/ManagerFactory.php b/src/Spout/Reader/XLSX/Creator/ManagerFactory.php
index 194edf7..20207cc 100644
--- a/src/Spout/Reader/XLSX/Creator/ManagerFactory.php
+++ b/src/Spout/Reader/XLSX/Creator/ManagerFactory.php
@@ -2,6 +2,7 @@
 
 namespace Box\Spout\Reader\XLSX\Creator;
 
+use Box\Spout\Reader\XLSX\Manager\RowManager;
 use Box\Spout\Reader\XLSX\Manager\SharedStringsCaching\CachingStrategyFactory;
 use Box\Spout\Reader\XLSX\Manager\SharedStringsManager;
 use Box\Spout\Reader\XLSX\Manager\SheetManager;
@@ -92,4 +93,13 @@ class ManagerFactory
 
         return new StyleManager($filePath, $workbookRelationshipsManager, $entityFactory);
     }
+
+    /**
+     * @param InternalEntityFactory $entityFactory Factory to create entities
+     * @return RowManager
+     */
+    public function createRowManager($entityFactory)
+    {
+        return new RowManager($entityFactory);
+    }
 }
diff --git a/src/Spout/Reader/XLSX/Helper/CellHelper.php b/src/Spout/Reader/XLSX/Helper/CellHelper.php
index 9346f16..27b5abf 100644
--- a/src/Spout/Reader/XLSX/Helper/CellHelper.php
+++ b/src/Spout/Reader/XLSX/Helper/CellHelper.php
@@ -18,30 +18,6 @@ class CellHelper
         'V' => 21, 'W' => 22, 'X' => 23, 'Y' => 24, 'Z' => 25,
     ];
 
-    /**
-     * Fills the missing indexes of an array with a given value.
-     * For instance, $dataArray = []; $a[1] = 1; $a[3] = 3;
-     * Calling fillMissingArrayIndexes($dataArray, 'FILL') will return this array: ['FILL', 1, 'FILL', 3]
-     *
-     * @param array $dataArray The array to fill
-     * @param string $fillValue optional
-     * @return array
-     */
-    public static function fillMissingArrayIndexes($dataArray, $fillValue = '')
-    {
-        if (empty($dataArray)) {
-            return [];
-        }
-        $existingIndexes = array_keys($dataArray);
-
-        $newIndexes = array_fill_keys(range(0, max($existingIndexes)), $fillValue);
-        $dataArray += $newIndexes;
-
-        ksort($dataArray);
-
-        return $dataArray;
-    }
-
     /**
      * Returns the base 10 column index associated to the cell index (base 26).
      * Excel uses A to Z letters for column indexing, where A is the 1st column,
diff --git a/src/Spout/Reader/XLSX/Manager/RowManager.php b/src/Spout/Reader/XLSX/Manager/RowManager.php
new file mode 100644
index 0000000..ec85bdc
--- /dev/null
+++ b/src/Spout/Reader/XLSX/Manager/RowManager.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Box\Spout\Reader\XLSX\Manager;
+
+use Box\Spout\Reader\Common\Entity\Row;
+use Box\Spout\Reader\XLSX\Creator\InternalEntityFactory;
+
+/**
+ * Class RowManager
+ */
+class RowManager
+{
+    /** @var InternalEntityFactory Factory to create entities */
+    private $entityFactory;
+
+    /**
+     * @param InternalEntityFactory $entityFactory Factory to create entities
+     */
+    public function __construct(InternalEntityFactory $entityFactory)
+    {
+        $this->entityFactory = $entityFactory;
+    }
+
+    /**
+     * Detect whether a row is considered empty.
+     * An empty row has all of its cells empty.
+     *
+     * @param Row $row
+     * @return bool
+     */
+    public function isEmpty(Row $row)
+    {
+        foreach ($row->getCells() as $cell) {
+            if (!$cell->isEmpty()) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Fills the missing indexes of a row with empty cells.
+     *
+     * @param Row $row
+     * @return Row
+     */
+    public function fillMissingIndexesWithEmptyCells(Row $row)
+    {
+        $rowCells = $row->getCells();
+        if (count($rowCells) === 0) {
+            return $row;
+        }
+
+        $maxCellIndex = max(array_keys($rowCells));
+
+        for ($cellIndex = 0; $cellIndex < $maxCellIndex; $cellIndex++) {
+            if (!isset($rowCells[$cellIndex])) {
+                $row->setCellAtIndex($this->entityFactory->createCell(''), $cellIndex);
+            }
+        }
+
+        return $row;
+    }
+}
diff --git a/src/Spout/Reader/XLSX/RowIterator.php b/src/Spout/Reader/XLSX/RowIterator.php
index b411758..478faf2 100644
--- a/src/Spout/Reader/XLSX/RowIterator.php
+++ b/src/Spout/Reader/XLSX/RowIterator.php
@@ -3,12 +3,16 @@
 namespace Box\Spout\Reader\XLSX;
 
 use Box\Spout\Common\Exception\IOException;
+use Box\Spout\Reader\Common\Entity\Cell;
+use Box\Spout\Reader\Common\Entity\Row;
 use Box\Spout\Reader\Common\XMLProcessor;
 use Box\Spout\Reader\Exception\XMLProcessingException;
 use Box\Spout\Reader\IteratorInterface;
 use Box\Spout\Reader\Wrapper\XMLReader;
+use Box\Spout\Reader\XLSX\Creator\InternalEntityFactory;
 use Box\Spout\Reader\XLSX\Helper\CellHelper;
 use Box\Spout\Reader\XLSX\Helper\CellValueFormatter;
+use Box\Spout\Reader\XLSX\Manager\RowManager;
 
 /**
  * Class RowIterator
@@ -42,17 +46,23 @@ class RowIterator implements IteratorInterface
     /** @var Helper\CellValueFormatter Helper to format cell values */
     protected $cellValueFormatter;
 
+    /** @var \Box\Spout\Reader\XLSX\Manager\RowManager Manages rows */
+    protected $rowManager;
+
+    /** @var \Box\Spout\Reader\XLSX\Creator\InternalEntityFactory Factory to create entities */
+    protected $entityFactory;
+
     /**
      * TODO: This variable can be deleted when row indices get preserved
      * @var int Number of read rows
      */
     protected $numReadRows = 0;
 
-    /** @var array Contains the data for the currently processed row (key = cell index, value = cell value) */
-    protected $currentlyProcessedRowData = [];
+    /** @var Row Contains the row currently processed */
+    protected $currentlyProcessedRow;
 
-    /** @var array|null Buffer used to store the row data, while checking if there are more rows to read */
-    protected $rowDataBuffer;
+    /** @var Row|null Buffer used to store the current row, while checking if there are more rows to read */
+    protected $rowBuffer;
 
     /** @var bool Indicates whether all rows have been read */
     protected $hasReachedEndOfFile = false;
@@ -79,14 +89,26 @@ class RowIterator implements IteratorInterface
      * @param XMLReader $xmlReader XML Reader
      * @param XMLProcessor $xmlProcessor Helper to process XML files
      * @param CellValueFormatter $cellValueFormatter Helper to format cell values
+     * @param RowManager $rowManager Manages rows
+     * @param InternalEntityFactory $entityFactory Factory to create entities
      */
-    public function __construct($filePath, $sheetDataXMLFilePath, $shouldPreserveEmptyRows, $xmlReader, $xmlProcessor, $cellValueFormatter)
-    {
+    public function __construct(
+        $filePath,
+        $sheetDataXMLFilePath,
+        $shouldPreserveEmptyRows,
+        $xmlReader,
+        XMLProcessor $xmlProcessor,
+        CellValueFormatter $cellValueFormatter,
+        RowManager $rowManager,
+        InternalEntityFactory $entityFactory
+    ) {
         $this->filePath = $filePath;
         $this->sheetDataXMLFilePath = $this->normalizeSheetDataXMLFilePath($sheetDataXMLFilePath);
+        $this->shouldPreserveEmptyRows = $shouldPreserveEmptyRows;
         $this->xmlReader = $xmlReader;
         $this->cellValueFormatter = $cellValueFormatter;
-        $this->shouldPreserveEmptyRows = $shouldPreserveEmptyRows;
+        $this->rowManager = $rowManager;
+        $this->entityFactory = $entityFactory;
 
         // Register all callbacks to process different nodes when reading the XML file
         $this->xmlProcessor = $xmlProcessor;
@@ -127,7 +149,7 @@ class RowIterator implements IteratorInterface
         $this->numReadRows = 0;
         $this->lastRowIndexProcessed = 0;
         $this->nextRowIndexToBeProcessed = 0;
-        $this->rowDataBuffer = null;
+        $this->rowBuffer = null;
         $this->hasReachedEndOfFile = false;
         $this->numColumns = 0;
 
@@ -192,7 +214,7 @@ class RowIterator implements IteratorInterface
      */
     protected function readDataForNextRow()
     {
-        $this->currentlyProcessedRowData = [];
+        $this->currentlyProcessedRow = $this->entityFactory->createRow([]);
 
         try {
             $this->xmlProcessor->readUntilStopped();
@@ -200,7 +222,7 @@ class RowIterator implements IteratorInterface
             throw new IOException("The {$this->sheetDataXMLFilePath} file cannot be read. [{$exception->getMessage()}]");
         }
 
-        $this->rowDataBuffer = $this->currentlyProcessedRowData;
+        $this->rowBuffer = $this->currentlyProcessedRow;
     }
 
     /**
@@ -238,7 +260,8 @@ class RowIterator implements IteratorInterface
             $numberOfColumnsForRow = (int) $numberOfColumnsForRow;
         }
 
-        $this->currentlyProcessedRowData = ($numberOfColumnsForRow !== 0) ? array_fill(0, $numberOfColumnsForRow, '') : [];
+        $cells = array_fill(0, $numberOfColumnsForRow, $this->entityFactory->createCell(''));
+        $this->currentlyProcessedRow->setCells($cells);
 
         return XMLProcessor::PROCESSING_CONTINUE;
     }
@@ -253,7 +276,9 @@ class RowIterator implements IteratorInterface
 
         // NOTE: expand() will automatically decode all XML entities of the child nodes
         $node = $xmlReader->expand();
-        $this->currentlyProcessedRowData[$currentColumnIndex] = $this->getCellValue($node);
+        $cell = $this->getCell($node);
+
+        $this->currentlyProcessedRow->setCellAtIndex($cell, $currentColumnIndex);
         $this->lastColumnIndexProcessed = $currentColumnIndex;
 
         return XMLProcessor::PROCESSING_CONTINUE;
@@ -265,7 +290,7 @@ class RowIterator implements IteratorInterface
     protected function processRowEndingNode()
     {
         // if the fetched row is empty and we don't want to preserve it..,
-        if (!$this->shouldPreserveEmptyRows && $this->isEmptyRow($this->currentlyProcessedRowData)) {
+        if (!$this->shouldPreserveEmptyRows && $this->rowManager->isEmpty($this->currentlyProcessedRow)) {
             // ... skip it
             return XMLProcessor::PROCESSING_CONTINUE;
         }
@@ -274,7 +299,7 @@ class RowIterator implements IteratorInterface
 
         // If needed, we fill the empty cells
         if ($this->numColumns === 0) {
-            $this->currentlyProcessedRowData = CellHelper::fillMissingArrayIndexes($this->currentlyProcessedRowData);
+            $this->currentlyProcessedRow = $this->rowManager->fillMissingIndexesWithEmptyCells($this->currentlyProcessedRow);
         }
 
         // at this point, we have all the data we need for the row
@@ -324,34 +349,27 @@ class RowIterator implements IteratorInterface
     }
 
     /**
-     * Returns the (unescaped) correctly marshalled, cell value associated to the given XML node.
+     * Returns the cell with (unescaped) correctly marshalled, cell value associated to the given XML node.
      *
      * @param \DOMNode $node
-     * @return string|int|float|bool|\DateTime|null The value associated with the cell (null when the cell has an error)
+     * @return Cell The cell set with the associated with the cell
      */
-    protected function getCellValue($node)
+    protected function getCell($node)
     {
-        return $this->cellValueFormatter->extractAndFormatNodeValue($node);
-    }
+        $cellValue = $this->cellValueFormatter->extractAndFormatNodeValue($node);
 
-    /**
-     * @param array $rowData
-     * @return bool Whether the given row is empty
-     */
-    protected function isEmptyRow($rowData)
-    {
-        return (count($rowData) === 1 && reset($rowData) === '');
+        return $this->entityFactory->createCell($cellValue);
     }
 
     /**
      * Return the current element, either an empty row or from the buffer.
      * @see http://php.net/manual/en/iterator.current.php
      *
-     * @return array|null
+     * @return Row|null
      */
     public function current()
     {
-        $rowDataForRowToBeProcessed = $this->rowDataBuffer;
+        $rowToBeProcessed = $this->rowBuffer;
 
         if ($this->shouldPreserveEmptyRows) {
             // when we need to preserve empty rows, we will either return
@@ -361,11 +379,11 @@ class RowIterator implements IteratorInterface
             if ($this->lastRowIndexProcessed !== $this->nextRowIndexToBeProcessed) {
                 // return empty row if mismatch between last processed row
                 // and the row that needs to be returned
-                $rowDataForRowToBeProcessed = [''];
+                $rowToBeProcessed = $this->entityFactory->createRow([]);
             }
         }
 
-        return $rowDataForRowToBeProcessed;
+        return $rowToBeProcessed;
     }
 
     /**
diff --git a/src/Spout/Writer/Common/Manager/RowManager.php b/src/Spout/Writer/Common/Manager/RowManager.php
index 7534db5..e709b5e 100644
--- a/src/Spout/Writer/Common/Manager/RowManager.php
+++ b/src/Spout/Writer/Common/Manager/RowManager.php
@@ -22,15 +22,19 @@ class RowManager
 
     /**
      * Detect whether a row is considered empty.
-     * An empty row has either no cells at all - or only one empty cell
+     * An empty row has all of its cells empty.
      *
      * @param Row $row
      * @return bool
      */
     public function isEmpty(Row $row)
     {
-        $cells = $row->getCells();
+        foreach ($row->getCells() as $cell) {
+            if (!$cell->isEmpty()) {
+                return false;
+            }
+        }
 
-        return count($cells) === 0 || (count($cells) === 1 && $cells[0]->isEmpty());
+        return true;
     }
 }
diff --git a/tests/Spout/Reader/XLSX/Helper/CellHelperTest.php b/tests/Spout/Reader/XLSX/Helper/CellHelperTest.php
index 4ae3dd3..a322bc6 100644
--- a/tests/Spout/Reader/XLSX/Helper/CellHelperTest.php
+++ b/tests/Spout/Reader/XLSX/Helper/CellHelperTest.php
@@ -9,29 +9,6 @@ use Box\Spout\Common\Exception\InvalidArgumentException;
  */
 class CellHelperTest extends \PHPUnit_Framework_TestCase
 {
-    /**
-     * @return array
-     */
-    public function dataProviderForTestFillMissingArrayIndexes()
-    {
-        return [
-            [null, []],
-            [[], []],
-            [[1 => 1, 3 => 3], ['FILL', 1, 'FILL', 3]],
-        ];
-    }
-
-    /**
-     * @dataProvider dataProviderForTestFillMissingArrayIndexes
-     * @param array $arrayToFill
-     * @param array $expectedFilledArray
-     */
-    public function testFillMissingArrayIndexes($arrayToFill, array $expectedFilledArray)
-    {
-        $filledArray = CellHelper::fillMissingArrayIndexes($arrayToFill, 'FILL');
-        $this->assertEquals($expectedFilledArray, $filledArray);
-    }
-
     /**
      * @return array
      */
diff --git a/tests/Spout/Reader/XLSX/Manager/RowManagerTest.php b/tests/Spout/Reader/XLSX/Manager/RowManagerTest.php
new file mode 100644
index 0000000..b0c25f4
--- /dev/null
+++ b/tests/Spout/Reader/XLSX/Manager/RowManagerTest.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Box\Spout\Reader\XLSX\Manager;
+
+use Box\Spout\Reader\Common\Entity\Cell;
+use Box\Spout\Reader\Common\Entity\Row;
+use Box\Spout\Reader\XLSX\Creator\HelperFactory;
+use Box\Spout\Reader\XLSX\Creator\InternalEntityFactory;
+use Box\Spout\Reader\XLSX\Creator\ManagerFactory;
+
+/**
+ * Class SharedStringsManagerTest
+ */
+class RowManagerTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @return array
+     */
+    public function dataProviderForTestFillMissingIndexesWithEmptyCells()
+    {
+        $cell1 = new Cell(1);
+        $cell3 = new Cell(3);
+
+        return [
+            [[], []],
+            [[1 => $cell1, 3 => $cell3], [new Cell(''), $cell1, new Cell(''), $cell3]],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderForTestFillMissingIndexesWithEmptyCells
+     *
+     * @param Cell[]|null $rowCells
+     * @param Cell[] $expectedFilledCells
+     */
+    public function testFillMissingIndexesWithEmptyCells($rowCells, $expectedFilledCells)
+    {
+        $rowManager = $this->createRowManager();
+
+        $rowToFill = new Row([]);
+        foreach ($rowCells as $cellIndex => $cell) {
+            $rowToFill->setCellAtIndex($cell, $cellIndex);
+        }
+
+        $filledRow = $rowManager->fillMissingIndexesWithEmptyCells($rowToFill);
+        $this->assertEquals($expectedFilledCells, $filledRow->getCells());
+    }
+
+    /**
+     * @return array
+     */
+    public function dataProviderForTestIsEmptyRow()
+    {
+        return [
+            // cells, expected isEmpty
+            [[], true],
+            [[new Cell('')], true],
+            [[new Cell(''), new Cell('')], true],
+            [[new Cell(''), new Cell(''), new Cell('Okay')], false],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderForTestIsEmptyRow
+     *
+     * @param array $cells
+     * @param bool $expectedIsEmpty
+     * @return void
+     */
+    public function testIsEmptyRow(array $cells, $expectedIsEmpty)
+    {
+        $rowManager = $this->createRowManager();
+        $row = new Row($cells);
+
+        $this->assertEquals($expectedIsEmpty, $rowManager->isEmpty($row));
+    }
+
+    /**
+     * @return RowManager
+     */
+    private function createRowManager()
+    {
+        $entityFactory = new InternalEntityFactory(
+            $this->createMock(ManagerFactory::class),
+            $this->createMock(HelperFactory::class)
+        );
+
+        return new RowManager($entityFactory);
+    }
+}
diff --git a/tests/Spout/Reader/XLSX/ReaderTest.php b/tests/Spout/Reader/XLSX/ReaderTest.php
index 3908257..8b35f0e 100644
--- a/tests/Spout/Reader/XLSX/ReaderTest.php
+++ b/tests/Spout/Reader/XLSX/ReaderTest.php
@@ -237,7 +237,6 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
                 'weird string', // valid 'str' string
                 null, // invalid date
             ],
-            ['', '', '', '', '', '', '', '', ''],
         ];
         $this->assertEquals($expectedRows, $allRows);
     }
@@ -451,10 +450,10 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(6, count($allRows), 'There should be 6 rows');
 
         $expectedRows = [
-            [''],
+            [],
             ['s1--A2', 's1--B2', 's1--C2'],
-            [''],
-            [''],
+            [],
+            [],
             ['s1--A5', 's1--B5', 's1--C5'],
             ['s1--A6', 's1--B6', 's1--C6'],
         ];
@@ -580,14 +579,14 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         foreach ($reader->getSheetIterator() as $sheet) {
             // this loop should only add the first row of the first sheet
             foreach ($sheet->getRowIterator() as $row) {
-                $allRows[] = $row;
+                $allRows[] = $row->toArray();
                 break;
             }
 
             // this loop should rewind the iterator and restart reading from the 1st row again
             // therefore, it should only add the first row of the first sheet
             foreach ($sheet->getRowIterator() as $row) {
-                $allRows[] = $row;
+                $allRows[] = $row->toArray();
                 break;
             }
 
@@ -598,7 +597,7 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         foreach ($reader->getSheetIterator() as $sheet) {
             // this loop should only add the first row of the current sheet
             foreach ($sheet->getRowIterator() as $row) {
-                $allRows[] = $row;
+                $allRows[] = $row->toArray();
                 break;
             }
 
@@ -708,7 +707,7 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
 
         foreach ($reader->getSheetIterator() as $sheetIndex => $sheet) {
             foreach ($sheet->getRowIterator() as $rowIndex => $row) {
-                $allRows[] = $row;
+                $allRows[] = $row->toArray();
             }
         }
 
diff --git a/tests/Spout/Writer/Common/Manager/RowManagerTest.php b/tests/Spout/Writer/Common/Manager/RowManagerTest.php
index 56d6128..730f4f8 100644
--- a/tests/Spout/Writer/Common/Manager/RowManagerTest.php
+++ b/tests/Spout/Writer/Common/Manager/RowManagerTest.php
@@ -19,6 +19,7 @@ class RowManagerTest extends TestCase
             // cells, expected isEmpty
             [[], true],
             [[new Cell('')], true],
+            [[new Cell(''), new Cell('')], true],
             [[new Cell(''), new Cell(''), new Cell('Okay')], false],
         ];
     }
@@ -34,7 +35,7 @@ class RowManagerTest extends TestCase
     {
         $rowManager = new RowManager(new StyleMerger());
 
-        $row = new Row($cells, null, $rowManager);
+        $row = new Row($cells, null);
         $this->assertEquals($expectedIsEmpty, $rowManager->isEmpty($row));
     }
 }