diff --git a/main/exercise/export/scorm/ScormAnswerFillInBlanks.php b/main/exercise/export/scorm/ScormAnswerFillInBlanks.php
new file mode 100644
index 0000000000..c1119b5d53
--- /dev/null
+++ b/main/exercise/export/scorm/ScormAnswerFillInBlanks.php
@@ -0,0 +1,92 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+/**
+ * This class handles the SCORM export of fill-in-the-blanks questions.
+ *
+ * @package chamilo.exercise.scorm
+ */
+class ScormAnswerFillInBlanks extends Answer
+{
+    /**
+     * Export the text with missing words.
+     *
+     * As a side effect, it stores two lists in the class :
+     * the missing words and their respective weightings.
+     */
+    public function export()
+    {
+        global $charset;
+        $js = '';
+        $html = '<tr><td colspan="2"><table width="100%">';
+        // get all enclosed answers
+        $blankList = [];
+        foreach ($this->answer as $i => $answer) {
+            $blankList[] = '['.$answer.']';
+        }
+
+        // splits text and weightings that are joined with the character '::'
+        list($answer, $weight) = explode('::', $answer);
+
+        $switchable = explode('@', $weight);
+        $isSetSwitchable = false;
+        if (isset($switchable[1]) && $switchable[1] == 1) {
+            $isSetSwitchable = true;
+        }
+
+        $weights = explode(',', $switchable[0]);
+        // because [] is parsed here we follow this procedure:
+        // 1. find everything between the [ and ] tags
+        $i = 1;
+        $jstmp = '';
+        $jstmpc = '';
+        $jstmpw = 'questions_answers_ponderation['.$this->questionJSId.'] = new Array();'."\n";
+        $jstmpw .= 'questions_answers_ponderation['.$this->questionJSId.'][0] = 0;'."\n";
+        $startlocations = api_strpos($answer, '[');
+        $endlocations = api_strpos($answer, ']');
+        while ($startlocations !== false && $endlocations !== false) {
+            $texstring = api_substr($answer, $startlocations, ($endlocations - $startlocations) + 1);
+            $replaceText = '<input 
+                type="text" 
+                name="question_'.$this->questionJSId.'_fib_'.$i.'" 
+                id = "question_'.$this->questionJSId.'_fib_'.$i.'" 
+                size="10" value="" 
+                />';
+            $answer = api_substr_replace(
+                $answer,
+                $replaceText,
+                $startlocations,
+                ($endlocations - $startlocations) + 1
+            );
+            $jstmp .= $i.',';
+            if (!empty($texstring)) {
+                $sub = api_substr($texstring, 1, -1);
+                if (!empty($sub)) {
+                    $jstmpc .= "'".api_htmlentities($sub, ENT_QUOTES, $charset)."',";
+                }
+            }
+            $my_weight = explode('@', $weights[$i - 1]);
+            if (count($my_weight) == 2) {
+                $weight_db = $my_weight[0];
+            } else {
+                $weight_db = $my_weight[0];
+            }
+            $jstmpw .= 'questions_answers_ponderation['.$this->questionJSId.']['.$i.'] = '.$weight_db.";\n";
+            $i++;
+            $startlocations = api_strpos($answer, '[');
+            $endlocations = api_strpos($answer, ']');
+        }
+
+        $html .= '<tr>
+            <td>
+            '.$answer.'
+            </td>
+            </tr></table></td></tr>';
+        $js .= 'questions_answers['.$this->questionJSId.'] = new Array('.api_substr($jstmp, 0, -1).');'."\n";
+        $js .= 'questions_answers_correct['.$this->questionJSId.'] = new Array('.api_substr($jstmpc, 0, -1).');'."\n";
+        $js .= 'questions_types['.$this->questionJSId.'] = \'fib\';'."\n";
+        $js .= $jstmpw;
+
+        return [$js, $html];
+    }
+}
diff --git a/main/exercise/export/scorm/scorm_classes.php b/main/exercise/export/scorm/scorm_classes.php
index 990776f0d8..4cf1b5d7d9 100755
--- a/main/exercise/export/scorm/scorm_classes.php
+++ b/main/exercise/export/scorm/scorm_classes.php
@@ -1,88 +1,7 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-/**
- * This class handles the SCORM export of fill-in-the-blanks questions.
- *
- * @package chamilo.exercise.scorm
- */
-class ScormAnswerFillInBlanks extends Answer
-{
-    /**
-     * Export the text with missing words.
-     *
-     * As a side effect, it stores two lists in the class :
-     * the missing words and their respective weightings.
-     */
-    public function export()
-    {
-        global $charset;
-        $js = '';
-        $html = '<tr><td colspan="2"><table width="100%">';
-        // get all enclosed answers
-        $blankList = [];
-        foreach ($this->answer as $i => $answer) {
-            $blankList[] = '['.$answer.']';
-        }
-
-        // splits text and weightings that are joined with the character '::'
-        list($answer, $weight) = explode('::', $answer);
-        $weights = explode(',', $weight);
-        // because [] is parsed here we follow this procedure:
-        // 1. find everything between the [ and ] tags
-        $i = 1;
-        $jstmp = '';
-        $jstmpc = '';
-        $jstmpw = 'questions_answers_ponderation['.$this->questionJSId.'] = new Array();'."\n";
-        $jstmpw .= 'questions_answers_ponderation['.$this->questionJSId.'][0] = 0;'."\n";
-        $startlocations = api_strpos($answer, '[');
-        $endlocations = api_strpos($answer, ']');
-        while ($startlocations !== false && $endlocations !== false) {
-            $texstring = api_substr($answer, $startlocations, ($endlocations - $startlocations) + 1);
-            $replaceText = '<input 
-                type="text" 
-                name="question_'.$this->questionJSId.'_fib_'.$i.'" 
-                id = "question_'.$this->questionJSId.'_fib_'.$i.'" 
-                size="10" value="" 
-                />';
-            $answer = api_substr_replace(
-                $answer,
-                $replaceText,
-                $startlocations,
-                ($endlocations - $startlocations) + 1
-            );
-            $jstmp .= $i.',';
-            if (!empty($texstring)) {
-                $sub = api_substr($texstring, 1, -1);
-                if (!empty($sub)) {
-                    $jstmpc .= "'".api_htmlentities($sub, ENT_QUOTES, $charset)."',";
-                }
-            }
-            $my_weight = explode('@', $weights[$i - 1]);
-            if (count($my_weight) == 2) {
-                $weight_db = $my_weight[0];
-            } else {
-                $weight_db = $my_weight[0];
-            }
-            $jstmpw .= 'questions_answers_ponderation['.$this->questionJSId.']['.$i.'] = '.$weight_db.";\n";
-            $i++;
-            $startlocations = api_strpos($answer, '[');
-            $endlocations = api_strpos($answer, ']');
-        }
 
-        $html .= '<tr>
-            <td>
-            '.$answer.'
-            </td>
-            </tr></table></td></tr>';
-        $js .= 'questions_answers['.$this->questionJSId.'] = new Array('.api_substr($jstmp, 0, -1).');'."\n";
-        $js .= 'questions_answers_correct['.$this->questionJSId.'] = new Array('.api_substr($jstmpc, 0, -1).');'."\n";
-        $js .= 'questions_types['.$this->questionJSId.'] = \'fib\';'."\n";
-        $js .= $jstmpw;
-
-        return [$js, $html];
-    }
-}
 
 /**
  * This class handles the SCORM export of free-answer questions.