diff --git a/.scrutinizer.yml b/.scrutinizer.yml
index 9794aff..42f2492 100644
--- a/.scrutinizer.yml
+++ b/.scrutinizer.yml
@@ -15,10 +15,13 @@ tools:
     php_pdepend: true
     php_loc:
         enabled: true
-        excluded_dirs: [vendor, tests]
-    php_cpd:
+        filter:
+            paths: ['src']
+    php_cpd: false # Must be disabled to use php_sim instead
+    php_sim:
         enabled: true
-        excluded_dirs: [vendor, tests]
+        filter:
+            paths: ['src']
 
 build_failure_conditions:
     - 'project.metric("scrutinizer.quality", < 9)' # Code Quality Rating drops below 9
diff --git a/src/Spout/Common/Helper/GlobalFunctionsHelper.php b/src/Spout/Common/Helper/GlobalFunctionsHelper.php
index 1d660c1..dd4356e 100644
--- a/src/Spout/Common/Helper/GlobalFunctionsHelper.php
+++ b/src/Spout/Common/Helper/GlobalFunctionsHelper.php
@@ -252,6 +252,17 @@ class GlobalFunctionsHelper
         header($string);
     }
 
+    /**
+     * Wrapper around global function ob_end_clean()
+     * @see ob_end_clean()
+     *
+     * @return void
+     */
+    public function ob_end_clean()
+    {
+        ob_end_clean();
+    }
+
     /**
      * Wrapper around global function iconv()
      * @see iconv()
diff --git a/src/Spout/Reader/ODS/Helper/CellValueFormatter.php b/src/Spout/Reader/ODS/Helper/CellValueFormatter.php
index 38c1c85..99d8563 100644
--- a/src/Spout/Reader/ODS/Helper/CellValueFormatter.php
+++ b/src/Spout/Reader/ODS/Helper/CellValueFormatter.php
@@ -24,6 +24,7 @@ class CellValueFormatter
     const XML_NODE_P = 'p';
     const XML_NODE_S = 'text:s';
     const XML_NODE_A = 'text:a';
+    const XML_NODE_SPAN = 'text:span';
 
     /** Definition of XML attribute used to parse data */
     const XML_ATTRIBUTE_TYPE = 'office:value-type';
@@ -104,7 +105,7 @@ class CellValueFormatter
                     $spaceAttribute = $childNode->getAttribute(self::XML_ATTRIBUTE_C);
                     $numSpaces = (!empty($spaceAttribute)) ? intval($spaceAttribute) : 1;
                     $currentPValue .= str_repeat(' ', $numSpaces);
-                } else if ($childNode->nodeName === self::XML_NODE_A) {
+                } else if ($childNode->nodeName === self::XML_NODE_A || $childNode->nodeName === self::XML_NODE_SPAN) {
                     $currentPValue .= $childNode->nodeValue;
                 }
             }
diff --git a/src/Spout/Writer/AbstractWriter.php b/src/Spout/Writer/AbstractWriter.php
index effa45b..46f47cc 100755
--- a/src/Spout/Writer/AbstractWriter.php
+++ b/src/Spout/Writer/AbstractWriter.php
@@ -121,6 +121,10 @@ abstract class AbstractWriter implements WriterInterface
         $this->filePointer = $this->globalFunctionsHelper->fopen('php://output', 'w');
         $this->throwIfFilePointerIsNotAvailable();
 
+        // Clear any previous output (otherwise the generated file will be corrupted)
+        // @see https://github.com/box/spout/issues/241
+        $this->globalFunctionsHelper->ob_end_clean();
+
         // Set headers
         $this->globalFunctionsHelper->header('Content-Type: ' . static::$headerContentType);
         $this->globalFunctionsHelper->header('Content-Disposition: attachment; filename="' . $this->outputFilePath . '"');
@@ -238,7 +242,8 @@ abstract class AbstractWriter implements WriterInterface
     public function addRows(array $dataRows)
     {
         if (!empty($dataRows)) {
-            if (!is_array($dataRows[0])) {
+            $firstRow = reset($dataRows);
+            if (!is_array($firstRow)) {
                 throw new InvalidArgumentException('The input should be an array of arrays');
             }
 
diff --git a/tests/Spout/Reader/ODS/ReaderTest.php b/tests/Spout/Reader/ODS/ReaderTest.php
index 759d842..dee4164 100644
--- a/tests/Spout/Reader/ODS/ReaderTest.php
+++ b/tests/Spout/Reader/ODS/ReaderTest.php
@@ -468,6 +468,20 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows, 'Text in hyperlinks should be read');
     }
 
+    /**
+     * @return void
+     */
+    public function testReaderShouldReadInlineFontFormattingAsText()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_inline_font_formatting.ods');
+
+        $expectedRows = [
+            ['I am a yellow bird']
+        ];
+
+        $this->assertEquals($expectedRows, $allRows, 'Text formatted inline should be read');
+    }
+
     /**
      * @param string $fileName
      * @param bool|void $shouldFormatDates
diff --git a/tests/resources/ods/sheet_with_inline_font_formatting.ods b/tests/resources/ods/sheet_with_inline_font_formatting.ods
new file mode 100644
index 0000000..60d4eee
Binary files /dev/null and b/tests/resources/ods/sheet_with_inline_font_formatting.ods differ