diff --git a/src/Spout/Writer/AbstractWriter.php b/src/Spout/Writer/AbstractWriter.php
index 68d452f..2d8af16 100644
--- a/src/Spout/Writer/AbstractWriter.php
+++ b/src/Spout/Writer/AbstractWriter.php
@@ -205,4 +205,3 @@ abstract class AbstractWriter implements WriterInterface
         $this->isWriterOpened = false;
     }
 }
-
diff --git a/src/Spout/Writer/Internal/XLSX/Workbook.php b/src/Spout/Writer/Internal/XLSX/Workbook.php
index e6ca0db..83f17b0 100644
--- a/src/Spout/Writer/Internal/XLSX/Workbook.php
+++ b/src/Spout/Writer/Internal/XLSX/Workbook.php
@@ -73,7 +73,7 @@ class Workbook
         $worksheetFilesFolder = $this->fileSystemHelper->getXlWorksheetsFolder();
         $worksheet = new Worksheet($sheet, $worksheetFilesFolder, $this->sharedStringsHelper, $this->shouldUseInlineStrings);
         $this->worksheets[] = $worksheet;
-
+        
         return $worksheet;
     }
 
diff --git a/src/Spout/Writer/Sheet.php b/src/Spout/Writer/Sheet.php
index f077028..d9b976a 100644
--- a/src/Spout/Writer/Sheet.php
+++ b/src/Spout/Writer/Sheet.php
@@ -27,6 +27,15 @@ class Sheet
         $this->name = self::DEFAULT_SHEET_NAME_PREFIX . ($sheetNumber + 1);
     }
 
+    /**
+     * @param string $sheetName The custom name of the sheet
+     * @return void
+     */ 
+    public function setName($sheetName)
+    {
+        $this->name = $sheetName;
+    }
+    
     /**
      * @return int Number of the sheet, based on order of creation (zero-based)
      */
diff --git a/src/Spout/Writer/XLSX.php b/src/Spout/Writer/XLSX.php
index 62e98f1..1f4e44d 100644
--- a/src/Spout/Writer/XLSX.php
+++ b/src/Spout/Writer/XLSX.php
@@ -125,6 +125,18 @@ class XLSX extends AbstractWriter
         return $this->book->getCurrentWorksheet()->getExternalSheet();
     }
 
+    /**
+     * Returns the the workbook for the XLSX file
+     *
+     * @return Book The workbook for the XLSX file
+     * @throws \Box\Spout\Writer\Exception\WriterNotOpenedException If the writer has not been opened yet
+     */
+    public function getBook()
+    {
+        $this->throwIfBookIsNotAvailable();
+        return $this->book;
+    }
+    
     /**
      * Sets the given sheet as the current one. New data will be written to this sheet.
      * The writing will resume where it stopped (i.e. data won't be truncated).