diff --git a/main/exercise/AnswerInOfficeDoc.php b/main/exercise/AnswerInOfficeDoc.php
new file mode 100644
index 00000000000..9ab5a00fdbf
--- /dev/null
+++ b/main/exercise/AnswerInOfficeDoc.php
@@ -0,0 +1,216 @@
+<?php
+
+/* For licensing terms, see /license.txt */
+
+/**
+ * Class AnswerInOfficeDoc
+ * Allows a question type where the answer is written in an Office document.
+ *
+ * @author Cristian
+ */
+class AnswerInOfficeDoc extends Question
+{
+    public $typePicture = 'options_evaluation.png';
+    public $explanationLangVar = 'AnswerInOfficeDoc';
+    public $sessionId;
+    public $userId;
+    public $exerciseId;
+    public $exeId;
+    private $storePath;
+    private $fileName;
+    private $filePath;
+
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        if ('true' !== OnlyofficePlugin::create()->get('enable_onlyoffice_plugin')) {
+            throw new Exception(get_lang('OnlyOfficePluginRequired'));
+        }
+
+        parent::__construct();
+        $this->type = ANSWER_IN_OFFICE_DOC;
+        $this->isContent = $this->getIsContent();
+    }
+
+    /**
+     * Initialize the file path structure.
+     */
+    public function initFile(int $sessionId, int $userId, int $exerciseId, int $exeId): void
+    {
+        $this->sessionId = $sessionId ?: 0;
+        $this->userId = $userId;
+        $this->exerciseId = $exerciseId ?: 0;
+        $this->exeId = $exeId;
+
+        $this->storePath = $this->generateDirectory();
+        $this->fileName = $this->generateFileName();
+        $this->filePath = $this->storePath . $this->fileName;
+    }
+
+    /**
+     * Create form for uploading an Office document.
+     */
+    public function createAnswersForm($form): void
+    {
+        if (!empty($this->exerciseList)) {
+            $this->exerciseId = reset($this->exerciseList);
+        }
+
+        $allowedFormats = [
+            'application/vnd.openxmlformats-officedocument.wordprocessingml.document', // .docx
+            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',      // .xlsx
+            'application/msword',                                                     // .doc
+            'application/vnd.ms-excel'                                                // .xls
+        ];
+
+        $form->addElement('file', 'office_file', get_lang('UploadOfficeDoc'));
+        $form->addRule('office_file', get_lang('ThisFieldIsRequired'), 'required');
+        $form->addRule('office_file', get_lang('InvalidFileFormat'), 'mimetype', $allowedFormats);
+
+        $allowedExtensions = implode(', ', ['.docx', '.xlsx', '.doc', '.xls']);
+        $form->addElement('static', 'file_hint', get_lang('AllowedFormats'), "<p>{$allowedExtensions}</p>");
+
+        if (!empty($this->extra)) {
+            $fileUrl = api_get_path(WEB_COURSE_PATH) . $this->getStoredFilePath();
+            $form->addElement('static', 'current_office_file', get_lang('CurrentOfficeDoc'), "<a href='{$fileUrl}' target='_blank'>{$this->extra}</a>");
+        }
+
+        $form->addText('weighting', get_lang('Weighting'), ['class' => 'span1']);
+
+        global $text;
+        $form->addButtonSave($text, 'submitQuestion');
+
+        if (!empty($this->iid)) {
+            $form->setDefaults(['weighting' => float_format($this->weighting, 1)]);
+        } else {
+            if ($this->isContent == 1) {
+                $form->setDefaults(['weighting' => '10']);
+            }
+        }
+    }
+
+    /**
+     * Process the uploaded document and save it.
+     */
+    public function processAnswersCreation($form, $exercise): void
+    {
+        if (!empty($_FILES['office_file']['name'])) {
+            $extension = pathinfo($_FILES['office_file']['name'], PATHINFO_EXTENSION);
+            $tempFilename = "office_" . uniqid() . "." . $extension;
+            $tempPath = sys_get_temp_dir() . '/' . $tempFilename;
+
+            if (!move_uploaded_file($_FILES['office_file']['tmp_name'], $tempPath)) {
+                return;
+            }
+
+            $this->weighting = $form->getSubmitValue('weighting');
+            $this->extra = "";
+            $this->save($exercise);
+
+            $this->exerciseId = $exercise->iid;
+            $uploadDir = $this->generateDirectory();
+
+            if (!is_dir($uploadDir)) {
+                mkdir($uploadDir, 0775, true);
+            }
+
+            $filename = "office_".$this->iid.".".$extension;
+            $filePath = $uploadDir . $filename;
+
+            if (!rename($tempPath, $filePath)) {
+                return;
+            }
+
+            $this->extra = $filename;
+            $this->save($exercise);
+        }
+    }
+
+    /**
+     * Generate the necessary directory for OnlyOffice documents.
+     */
+    private function generateDirectory(): string
+    {
+        $exercisePath = api_get_path(SYS_COURSE_PATH).$this->course['path']."/exercises/onlyoffice/{$this->exerciseId}/{$this->iid}/";
+
+        if (!is_dir($exercisePath)) {
+            mkdir($exercisePath, 0775, true);
+        }
+
+        return rtrim($exercisePath, '/') . '/';
+    }
+
+    /**
+     * Get the stored file path dynamically.
+     */
+    public function getStoredFilePath(): ?string
+    {
+        if (empty($this->extra)) {
+            return null;
+        }
+
+        return "{$this->course['path']}/exercises/onlyoffice/{$this->exerciseId}/{$this->iid}/{$this->extra}";
+    }
+
+    /**
+     * Get the absolute file path. Returns null if the file doesn't exist.
+     */
+    public function getFileUrl(bool $loadFromDatabase = false): ?string
+    {
+        if ($loadFromDatabase) {
+            $em = Database::getManager();
+            $result = $em->getRepository('ChamiloCoreBundle:TrackEAttempt')->findOneBy([
+                'exeId' => $this->exeId,
+                'userId' => $this->userId,
+                'questionId' => $this->iid,
+                'sessionId' => $this->sessionId,
+                'cId' => $this->course['real_id'],
+            ]);
+
+            if (!$result || empty($result->getFilename())) {
+                return null;
+            }
+
+            $this->fileName = $result->getFilename();
+        } else {
+            if (empty($this->extra)) {
+                return null;
+            }
+
+            $this->fileName = $this->extra;
+        }
+
+        $filePath = $this->getStoredFilePath();
+
+        if (is_file(api_get_path(SYS_COURSE_PATH) . $filePath)) {
+            return $filePath;
+        }
+
+        return null;
+    }
+
+    /**
+     * Show the question in an exercise.
+     */
+    public function return_header(Exercise $exercise, $counter = null, $score = [])
+    {
+        $score['revised'] = $this->isQuestionWaitingReview($score);
+        $header = parent::return_header($exercise, $counter, $score);
+        $header .= '<table class="'.$this->question_table_class.'">
+            <tr>
+                <th>'.get_lang("Answer").'</th>
+            </tr>';
+
+        return $header;
+    }
+
+    /**
+     * Generate the file name for the OnlyOffice document.
+     */
+    private function generateFileName(): string
+    {
+        return 'office_' . uniqid();
+    }
+}
diff --git a/main/exercise/exercise.class.php b/main/exercise/exercise.class.php
index 67b24d4ec9c..ab7ac782599 100755
--- a/main/exercise/exercise.class.php
+++ b/main/exercise/exercise.class.php
@@ -3958,7 +3958,8 @@ public function manage_answer(
             $answerType == ORAL_EXPRESSION ||
             $answerType == CALCULATED_ANSWER ||
             $answerType == ANNOTATION ||
-            $answerType == UPLOAD_ANSWER
+            $answerType == UPLOAD_ANSWER ||
+            $answerType == ANSWER_IN_OFFICE_DOC
         ) {
             $nbrAnswers = 1;
         }
@@ -4762,6 +4763,7 @@ function ($answerId) use ($objAnswerTmp) {
                     break;
                 case UPLOAD_ANSWER:
                 case FREE_ANSWER:
+                case ANSWER_IN_OFFICE_DOC:
                     if ($from_database) {
                         $sql = "SELECT answer, marks FROM $TBL_TRACK_ATTEMPT
                                  WHERE
@@ -5423,6 +5425,18 @@ function ($answerId) use ($objAnswerTmp) {
                                 $questionScore,
                                 $results_disabled
                             );
+                        } elseif ($answerType == ANSWER_IN_OFFICE_DOC) {
+                            $exe_info = Event::get_exercise_results_by_attempt($exeId);
+                            $exe_info = $exe_info[$exeId] ?? null;
+                            ExerciseShowFunctions::displayOnlyOfficeAnswer(
+                                $feedback_type,
+                                $exeId,
+                                $exe_info['exe_user_id'] ?? api_get_user_id(),
+                                $this->iid,
+                                $questionId,
+                                $questionScore,
+                                true
+                            );
                         } elseif ($answerType == ORAL_EXPRESSION) {
                             // to store the details of open questions in an array to be used in mail
                             /** @var OralExpression $objQuestionTmp */
@@ -5821,6 +5835,18 @@ function ($answerId) use ($objAnswerTmp) {
                                 $results_disabled
                             );
                             break;
+                        case ANSWER_IN_OFFICE_DOC:
+                            $exe_info = Event::get_exercise_results_by_attempt($exeId);
+                            $exe_info = $exe_info[$exeId] ?? null;
+                            ExerciseShowFunctions::displayOnlyOfficeAnswer(
+                                $feedback_type,
+                                $exeId,
+                                $exe_info['exe_user_id'] ?? api_get_user_id(),
+                                $this->iid,
+                                $questionId,
+                                $questionScore
+                            );
+                            break;
                         case ORAL_EXPRESSION:
                             echo '<tr>
                                 <td>'.
@@ -6463,6 +6489,24 @@ function ($answerId) use ($objAnswerTmp) {
                     false,
                     $questionDuration
                 );
+            } elseif ($answerType == ANSWER_IN_OFFICE_DOC) {
+                $answer = $choice;
+                $exerciseId = $this->iid;
+                $questionId = $quesId;
+                $originalFilePath = $objQuestionTmp->getFileUrl();
+                $originalExtension = !empty($originalFilePath) ? pathinfo($originalFilePath, PATHINFO_EXTENSION) : 'docx';
+                $fileName = "response_{$exeId}.{$originalExtension}";
+                Event::saveQuestionAttempt(
+                    $questionScore,
+                    $answer,
+                    $questionId,
+                    $exeId,
+                    0,
+                    $exerciseId,
+                    false,
+                    $questionDuration,
+                    $fileName
+                );
             } elseif ($answerType == ORAL_EXPRESSION) {
                 $answer = $choice;
                 $absFilePath = $objQuestionTmp->getAbsoluteFilePath();
diff --git a/main/exercise/exercise_report.php b/main/exercise/exercise_report.php
index 9b027b00ef3..f87e9376e77 100755
--- a/main/exercise/exercise_report.php
+++ b/main/exercise/exercise_report.php
@@ -211,7 +211,7 @@
 
         // From the database.
         $marksFromDatabase = $questionListData[$questionId]['marks'];
-        if (in_array($question->type, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER])) {
+        if (in_array($question->type, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER, ANSWER_IN_OFFICE_DOC])) {
             // From the form.
             $params['marks'] = $marks;
             if ($marksFromDatabase != $marks) {
diff --git a/main/exercise/exercise_show.php b/main/exercise/exercise_show.php
index 445a2e8ebe8..f456f3c9fed 100755
--- a/main/exercise/exercise_show.php
+++ b/main/exercise/exercise_show.php
@@ -444,6 +444,7 @@ function getFCK(vals, marksid) {
         case GLOBAL_MULTIPLE_ANSWER:
         case FREE_ANSWER:
         case UPLOAD_ANSWER:
+        case ANSWER_IN_OFFICE_DOC:
         case ORAL_EXPRESSION:
         case MATCHING:
         case MATCHING_COMBINATION:
@@ -612,7 +613,7 @@ function getFCK(vals, marksid) {
         if ($isFeedbackAllowed && $action !== 'export') {
             $name = 'fckdiv'.$questionId;
             $marksname = 'marksName'.$questionId;
-            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER])) {
+            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER, ANSWER_IN_OFFICE_DOC])) {
                 $url_name = get_lang('EditCommentsAndMarks');
             } else {
                 $url_name = get_lang('AddComments');
@@ -689,7 +690,7 @@ function getFCK(vals, marksid) {
         }
 
         if ($is_allowedToEdit && $isFeedbackAllowed && $action !== 'export') {
-            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER])) {
+            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER, ANSWER_IN_OFFICE_DOC])) {
                 $marksname = 'marksName'.$questionId;
                 $arrmarks[] = $questionId;
 
@@ -846,7 +847,7 @@ class="exercise_mark_select"
         }
     }
 
-    if (in_array($objQuestionTmp->type, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER])) {
+    if (in_array($objQuestionTmp->type, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER, ANSWER_IN_OFFICE_DOC])) {
         $scoreToReview = [
             'score' => $my_total_score,
             'comments' => isset($comnt) ? $comnt : null,
diff --git a/main/exercise/question.class.php b/main/exercise/question.class.php
index 1cee986b4bc..6ecce2e3729 100755
--- a/main/exercise/question.class.php
+++ b/main/exercise/question.class.php
@@ -75,6 +75,7 @@ abstract class Question
         UPLOAD_ANSWER => ['UploadAnswer.php', 'UploadAnswer'],
         MULTIPLE_ANSWER_DROPDOWN => ['MultipleAnswerDropdown.php', 'MultipleAnswerDropdown'],
         MULTIPLE_ANSWER_DROPDOWN_COMBINATION => ['MultipleAnswerDropdownCombination.php', 'MultipleAnswerDropdownCombination'],
+        ANSWER_IN_OFFICE_DOC => ['AnswerInOfficeDoc.php', 'AnswerInOfficeDoc'],
     ];
 
     /**
@@ -110,6 +111,7 @@ public function __construct()
             FILL_IN_BLANKS,
             FILL_IN_BLANKS_COMBINATION,
             FREE_ANSWER,
+            ANSWER_IN_OFFICE_DOC,
             ORAL_EXPRESSION,
             CALCULATED_ANSWER,
             ANNOTATION,
@@ -1663,6 +1665,9 @@ public static function getQuestionTypeList()
             self::$questionTypes[HOT_SPOT_DELINEATION] = null;
             unset(self::$questionTypes[HOT_SPOT_DELINEATION]);
         }
+        if ('true' !== OnlyofficePlugin::create()->get('enable_onlyoffice_plugin')) {
+            unset(self::$questionTypes[ANSWER_IN_OFFICE_DOC]);
+        }
 
         return self::$questionTypes;
     }
@@ -2248,6 +2253,7 @@ public function return_header(Exercise $exercise, $counter = null, $score = [])
             case FREE_ANSWER:
             case UPLOAD_ANSWER:
             case ORAL_EXPRESSION:
+            case ANSWER_IN_OFFICE_DOC:
             case ANNOTATION:
                 $score['revised'] = isset($score['revised']) ? $score['revised'] : false;
                 if ($score['revised'] == true) {
diff --git a/main/inc/lib/api.lib.php b/main/inc/lib/api.lib.php
index 482b7cd6d2e..22487292f5f 100755
--- a/main/inc/lib/api.lib.php
+++ b/main/inc/lib/api.lib.php
@@ -544,6 +544,7 @@
 define('FILL_IN_BLANKS_COMBINATION', 27);
 define('MULTIPLE_ANSWER_DROPDOWN_COMBINATION', 28);
 define('MULTIPLE_ANSWER_DROPDOWN', 29);
+define('ANSWER_IN_OFFICE_DOC', 30);
 
 define('EXERCISE_CATEGORY_RANDOM_SHUFFLED', 1);
 define('EXERCISE_CATEGORY_RANDOM_ORDERED', 2);
@@ -591,6 +592,7 @@
     MULTIPLE_ANSWER_TRUE_FALSE.':'.
     MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE.':'.
     ORAL_EXPRESSION.':'.
+    ANSWER_IN_OFFICE_DOC.':'.
     GLOBAL_MULTIPLE_ANSWER.':'.
     MEDIA_QUESTION.':'.
     CALCULATED_ANSWER.':'.
diff --git a/main/inc/lib/exercise.lib.php b/main/inc/lib/exercise.lib.php
index 32d53a14a97..e6021b41e5f 100644
--- a/main/inc/lib/exercise.lib.php
+++ b/main/inc/lib/exercise.lib.php
@@ -114,7 +114,7 @@ public static function showQuestion(
                 }
             }
 
-            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, UPLOAD_ANSWER]) && $freeze) {
+            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, UPLOAD_ANSWER, ANSWER_IN_OFFICE_DOC]) && $freeze) {
                 return '';
             }
 
@@ -284,6 +284,22 @@ function setRemoveLink(dataContext) {
                     }
                     $s .= $multipleForm->returnForm();
                     break;
+                case ANSWER_IN_OFFICE_DOC:
+                    if ('true' === OnlyofficePlugin::create()->get('enable_onlyoffice_plugin')) {
+                        global $exe_id;
+                        if (!empty($objQuestionTmp->extra)) {
+                            $fileUrl = api_get_course_path()."/exercises/onlyoffice/{$exerciseId}/{$questionId}/" . $objQuestionTmp->extra;
+                            $documentUrl = OnlyofficeTools::getPathToView($fileUrl, false, $exe_id, $questionId);
+                            echo '<div class="office-doc-container">';
+                            echo "<iframe src='{$documentUrl}' width='100%' height='600' style='border:none;'></iframe>";
+                            echo '</div>';
+                        } else {
+                            echo '<p>' . get_lang('NoOfficeDocProvided') . '</p>';
+                        }
+                    } else {
+                        echo '<p>' . get_lang('OnlyOfficePluginRequired') . '</p>';
+                    }
+                    break;
                 case ORAL_EXPRESSION:
                     // Add nanog
                     if (api_get_setting('enable_record_audio') === 'true') {
@@ -2576,7 +2592,7 @@ public static function get_exam_results_data(
                             FROM $TBL_EXERCISES_REL_QUESTION terq
                             LEFT JOIN $TBL_EXERCISES_QUESTION teq
                             ON terq.question_id = teq.iid
-                            WHERE teq.type in (".FREE_ANSWER.", ".ORAL_EXPRESSION.", ".ANNOTATION.", ".UPLOAD_ANSWER.")
+                            WHERE teq.type in (".FREE_ANSWER.", ".ORAL_EXPRESSION.", ".ANNOTATION.", ".UPLOAD_ANSWER.", ".ANSWER_IN_OFFICE_DOC.")
             ";
 
             $resultExerciseIds = Database::query($sqlExercise);
@@ -5541,7 +5557,7 @@ public static function displayQuestionListByAttempt(
                 if ($show_results) {
                     $score = $calculatedScore;
                 }
-                if (in_array($objQuestionTmp->type, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER])) {
+                if (in_array($objQuestionTmp->type, [FREE_ANSWER, ORAL_EXPRESSION, ANNOTATION, UPLOAD_ANSWER, ANSWER_IN_OFFICE_DOC])) {
                     $reviewScore = [
                         'score' => $my_total_score,
                         'comments' => Event::get_comments($exeId, $questionId),
@@ -6419,6 +6435,7 @@ public static function getEmbeddableTypes(): array
             READING_COMPREHENSION,
             MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY,
             UPLOAD_ANSWER,
+            ANSWER_IN_OFFICE_DOC,
             MATCHING_COMBINATION,
             FILL_IN_BLANKS_COMBINATION,
             MULTIPLE_ANSWER_DROPDOWN,
diff --git a/main/inc/lib/exercise_show_functions.lib.php b/main/inc/lib/exercise_show_functions.lib.php
index d381836168e..4307f1bbe5f 100755
--- a/main/inc/lib/exercise_show_functions.lib.php
+++ b/main/inc/lib/exercise_show_functions.lib.php
@@ -1002,4 +1002,68 @@ public static function displayAnnotationAnswer(
             }
         }
     }
+
+    /**
+     * Displays the submitted OnlyOffice document in an iframe.
+     *
+     * @param string $feedbackType   The feedback type of the exercise.
+     * @param int    $exeId          The execution ID.
+     * @param int    $userId         The user ID.
+     * @param int    $exerciseId     The exercise ID.
+     * @param int    $questionId     The question ID.
+     * @param int    $questionScore  Score assigned to the response.
+     * @param bool   $autorefresh    If true, auto-refresh the iframe after a short delay (used in result view).
+     */
+    public static function displayOnlyOfficeAnswer(
+        string $feedbackType,
+        int $exeId,
+        int $userId,
+        int $exerciseId,
+        int $questionId,
+        int $questionScore = 0,
+        bool $autorefresh = false
+    ): void {
+        $filePathPattern = api_get_path(SYS_COURSE_PATH).api_get_course_path()."/exercises/onlyoffice/{$exerciseId}/{$questionId}/{$userId}/response_{$exeId}.*";
+        $files = glob($filePathPattern);
+
+        if (!empty($files)) {
+            $fileUrl = api_get_course_path() . "/exercises/onlyoffice/{$exerciseId}/{$questionId}/{$userId}/" . basename($files[0]);
+            $iframeId = "onlyoffice_result_frame_{$exerciseId}_{$questionId}_{$exeId}_{$userId}";
+            $loaderId = "onlyoffice_loader_{$exerciseId}_{$questionId}_{$exeId}_{$userId}";
+            $iframeSrc = OnlyofficeTools::getPathToView($fileUrl, false, $exeId, $questionId, true);
+            $iframeSrc .= '&t=' . time();
+            echo '
+                <tr>
+                    <td>
+                        <p><b>' . get_lang('SubmittedDocument') . ':</b></p>';
+                        if ($autorefresh) {
+                            echo '
+                        <div id="' . $loaderId . '">
+                            <p><em>' . get_lang('LoadingLatestVersion') . '...</em></p>
+                        </div>
+                        <iframe id="' . $iframeId . '" src="' . $iframeSrc . '" width="100%" height="600px" style="border:none; display:none;"></iframe>';
+                            echo "<script>
+                            setTimeout(function() {
+                                var iframe = document.getElementById('{$iframeId}');
+                                var loader = document.getElementById('{$loaderId}');
+                                if (iframe && loader) {
+                                    iframe.src = iframe.src + '&reload=' + new Date().getTime();
+                                    iframe.style.display = 'block';
+                                    loader.style.display = 'none';
+                                }
+                            }, 5000);
+                    </script>";
+            } else {
+                echo '
+                <iframe id="' . $iframeId . '" src="' . $iframeSrc . '" width="100%" height="600px" style="border:none;"></iframe>';
+            }
+            echo '</td></tr>';
+        } else {
+            echo '<tr><td>' . get_lang('NoOfficeDocProvided') . '</td></tr>';
+        }
+
+        if ($questionScore <= 0 && EXERCISE_FEEDBACK_TYPE_EXAM !== $feedbackType) {
+            echo '<tr><td>' . ExerciseLib::getNotCorrectedYetText() . '</td></tr>';
+        }
+    }
 }
diff --git a/plugin/onlyoffice/callback.php b/plugin/onlyoffice/callback.php
index a1c60720be3..4b6d4ecb3e0 100644
--- a/plugin/onlyoffice/callback.php
+++ b/plugin/onlyoffice/callback.php
@@ -23,8 +23,8 @@
 $plugin = OnlyofficePlugin::create();
 
 if (isset($_GET['hash']) && !empty($_GET['hash'])) {
-    $callbackResponseArray = [];
-    @header('Content-Type: application/json; charset==utf-8');
+
+    @header('Content-Type: application/json; charset=utf-8');
     @header('X-Robots-Tag: noindex');
     @header('X-Content-Type-Options: nosniff');
 
@@ -32,9 +32,8 @@
     $jwtManager = new OnlyofficeJwtManager($appSettings);
     list($hashData, $error) = $jwtManager->readHash($_GET['hash'], api_get_security_key());
     if (null === $hashData) {
-        $callbackResponseArray['status'] = 'error';
-        $callbackResponseArray['error'] = $error;
-        exit(json_encode($callbackResponseArray));
+        error_log("ONLYOFFICE CALLBACK: ERROR - Hash inválido: ".$error);
+        exit(json_encode(['status' => 'error', 'error' => $error]));
     }
 
     $type = $hashData->type;
@@ -43,15 +42,12 @@
     $docId = $hashData->docId;
     $groupId = $hashData->groupId;
     $sessionId = $hashData->sessionId;
-
-    $courseInfo = api_get_course_info_by_id($courseId);
-    $courseCode = $courseInfo['code'];
+    $docPath = isset($_GET['docPath']) ? urldecode($_GET['docPath']) : ($hashData->docPath ?? null);
 
     if (!empty($userId)) {
         $userInfo = api_get_user_info($userId);
     } else {
-        $result['error'] = 'User not found';
-        exit(json_encode($result));
+        exit(json_encode(['error' => 'User not found']));
     }
 
     if (api_is_anonymous()) {
@@ -78,9 +74,7 @@
             $callbackResponseArray = emptyFile();
             exit(json_encode($callbackResponseArray));
         default:
-            $callbackResponseArray['status'] = 'error';
-            $callbackResponseArray['error'] = '404 Method not found';
-            exit(json_encode($callbackResponseArray));
+            exit(json_encode(['status' => 'error', 'error' => '404 Method not found']));
     }
 }
 
@@ -89,30 +83,29 @@
  */
 function track(): array
 {
-    $result = [];
-
-    global $plugin;
     global $courseCode;
     global $userId;
     global $docId;
+    global $docPath;
     global $groupId;
     global $sessionId;
     global $courseInfo;
     global $appSettings;
     global $jwtManager;
 
-    if (($body_stream = file_get_contents('php://input')) === false) {
-        $result['error'] = 'Bad Request';
-
-        return $result;
+    $body_stream = file_get_contents('php://input');
+    if ($body_stream === false) {
+        return ['error' => 'Bad Request'];
     }
 
     $data = json_decode($body_stream, true);
 
     if (null === $data) {
-        $result['error'] = 'Bad Response';
+        return ['error' => 'Bad Response'];
+    }
 
-        return $result;
+    if ($data['status'] == 4) {
+        return ['status' => 'success', 'message' => 'No changes detected'];
     }
 
     if ($jwtManager->isJwtEnabled()) {
@@ -120,10 +113,7 @@ function track(): array
             try {
                 $payload = $jwtManager->decode($data['token'], $appSettings->getJwtKey());
             } catch (UnexpectedValueException $e) {
-                $result['status'] = 'error';
-                $result['error'] = '403 Access denied';
-
-                return $result;
+                return ['status' => 'error', 'error' => '403 Access denied'];
             }
         } else {
             $token = substr(getallheaders()[$appSettings->getJwtHeader()], strlen('Bearer '));
@@ -131,21 +121,51 @@ function track(): array
                 $decodeToken = $jwtManager->decode($token, $appSettings->getJwtKey());
                 $payload = $decodeToken->payload;
             } catch (UnexpectedValueException $e) {
-                $result['status'] = 'error';
-                $result['error'] = '403 Access denied';
+                return ['status' => 'error', 'error' => '403 Access denied'];
+            }
+        }
+    }
 
-                return $result;
+    if (!empty($docPath)) {
+        $docPath = urldecode($docPath);
+        $filePath = api_get_path(SYS_COURSE_PATH).$docPath;
+
+        if (!file_exists($filePath)) {
+            return ['status' => 'error', 'error' => 'File not found'];
+        }
+
+        $documentKey = basename($docPath);
+        if ($data['status'] == 2 || $data['status'] == 3) {
+            if (!empty($data['url'])) {
+                $newContent = file_get_contents($data['url']);
+                if ($newContent === false) {
+                    return ['status' => 'error', 'error' => 'Failed to fetch document'];
+                }
+
+                if (file_put_contents($filePath, $newContent) === false) {
+                    return ['status' => 'error', 'error' => 'Failed to save document'];
+                }
+            } else {
+                return ['status' => 'error', 'error' => 'No file URL provided'];
             }
         }
+    } else if (!empty($docId)) {
+        $docInfo = DocumentManager::get_document_data_by_id($docId, $courseCode, false, $sessionId);
+        if (!$docInfo || !file_exists($docInfo['absolute_path'])) {
+            return ['status' => 'error', 'error' => 'File not found'];
+        }
 
-        $data['url'] = isset($payload->url) ? $payload->url : null;
+        $documentKey = $docId;
+        $data['url'] = $payload->url ?? null;
         $data['status'] = $payload->status;
+    } else {
+        return ['status' => 'error', 'error' => 'File not found'];
     }
 
     $docStatus = new CallbackDocStatus($data['status']);
     $callback = new OnlyofficeCallback();
     $callback->setStatus($docStatus);
-    $callback->setKey($docId);
+    $callback->setKey($documentKey);
     $callback->setUrl($data['url']);
     $callbackService = new OnlyofficeCallbackService(
         $appSettings,
@@ -153,12 +173,15 @@ function track(): array
         [
             'courseCode' => $courseCode,
             'userId' => $userId,
-            'docId' => $docId,
+            'docId' => $docId ?? '',
+            'docPath' => $docPath ?? '',
             'groupId' => $groupId,
             'sessionId' => $sessionId,
             'courseInfo' => $courseInfo,
-        ]);
-    $result = $callbackService->processCallback($callback, $docId);
+        ]
+    );
+
+    $result = $callbackService->processCallback($callback, $documentKey);
 
     return $result;
 }
@@ -173,6 +196,8 @@ function download()
     global $userId;
     global $docId;
     global $groupId;
+    global $docPath;
+    global $courseCode;
     global $sessionId;
     global $courseInfo;
     global $appSettings;
@@ -183,27 +208,30 @@ function download()
         try {
             $payload = $jwtManager->decode($token, $appSettings->getJwtKey());
         } catch (UnexpectedValueException $e) {
-            $result['status'] = 'error';
-            $result['error'] = '403 Access denied';
-
-            return $result;
+            return ['status' => 'error', 'error' => '403 Access denied'];
         }
     }
 
-    if (!empty($docId) && !empty($courseCode)) {
-        $docInfo = DocumentManager::get_document_data_by_id($docId, $courseCode, false, $sessionId);
+    if (!empty($docPath)) {
+        $filePath = api_get_path(SYS_COURSE_PATH) . urldecode($docPath);
 
-        if (false === $docInfo) {
-            $result['error'] = 'File not found';
+        if (!file_exists($filePath)) {
+            return ['status' => 'error', 'error' => 'File not found'];
+        }
 
-            return $result;
+        $docInfo = [
+            'title' => basename($filePath),
+            'absolute_path' => $filePath,
+        ];
+    } else if (!empty($docId) && !empty($courseCode)) {
+        $docInfo = DocumentManager::get_document_data_by_id($docId, $courseCode, false, $sessionId);
+        if (!$docInfo || !file_exists($docInfo['absolute_path'])) {
+            return ['status' => 'error', 'error' => 'File not found'];
         }
 
         $filePath = $docInfo['absolute_path'];
     } else {
-        $result['error'] = 'File not found';
-
-        return $result;
+        return ['status' => 'error', 'error' => 'Invalid request'];
     }
 
     @header('Content-Type: application/octet-stream');
diff --git a/plugin/onlyoffice/editor.php b/plugin/onlyoffice/editor.php
index 5d16ad385bb..299dbe2bbcd 100644
--- a/plugin/onlyoffice/editor.php
+++ b/plugin/onlyoffice/editor.php
@@ -3,7 +3,7 @@
  * (c) Copyright Ascensio System SIA 2024.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
+ * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
@@ -21,21 +21,19 @@
 $isEnable = 'true' === $plugin->get('enable_onlyoffice_plugin');
 if (!$isEnable) {
     exit("Document server isn't enabled");
-
-    return;
 }
 
 $appSettings = new OnlyofficeAppsettings($plugin);
 $documentServerUrl = $appSettings->getDocumentServerUrl();
 if (empty($documentServerUrl)) {
     exit("Document server isn't configured");
-
-    return;
 }
 
 $config = [];
 $docApiUrl = $appSettings->getDocumentServerApiUrl();
-$docId = (int) $_GET['docId'];
+$docId = isset($_GET['docId']) ? (int) $_GET['docId'] : null;
+$docPath = isset($_GET['doc']) ? urldecode($_GET['doc']) : null;
+
 $groupId = isset($_GET['groupId']) && !empty($_GET['groupId']) ? (int) $_GET['groupId'] : (!empty($_GET['gidReq']) ? (int) $_GET['gidReq'] : null);
 $userId = api_get_user_id();
 $userInfo = api_get_user_info($userId);
@@ -46,7 +44,99 @@
     api_not_allowed(true);
 }
 $courseCode = $courseInfo['code'];
-$docInfo = DocumentManager::get_document_data_by_id($docId, $courseCode, false, $sessionId);
+$exerciseId = isset($_GET['exerciseId']) ? (int) $_GET['exerciseId'] : null;
+$exeId = isset($_GET['exeId']) ? (int) $_GET['exeId'] : null;
+$questionId = isset($_GET['questionId']) ? (int) $_GET['questionId'] : null;
+$isReadOnly = isset($_GET['readOnly']) ? (int) $_GET['readOnly'] : null;
+$docInfo = null;
+$fileId = null;
+$fileUrl = null;
+
+if ($docPath) {
+    $filePath = api_get_path(SYS_COURSE_PATH) . $docPath;
+    if (!file_exists($filePath)) {
+        error_log("ERROR: Original file not found -> " . $filePath);
+        die("Error: Document not found.");
+    }
+
+    $extension = pathinfo($filePath, PATHINFO_EXTENSION);
+    $fileUrl = api_get_path(WEB_COURSE_PATH).$docPath;
+    $newDocPath = $docPath;
+    $userFilePath = $filePath;
+
+    if ($exeId) {
+        $newDocPath = api_get_course_path()."/exercises/onlyoffice/{$exerciseId}/{$questionId}/{$userId}/response_{$exeId}.{$extension}";
+        $userFilePath = api_get_path(SYS_COURSE_PATH).$newDocPath;
+
+        if (!file_exists($userFilePath)) {
+            if (!is_dir(dirname($userFilePath))) {
+                mkdir(dirname($userFilePath), 0775, true);
+            }
+            if (!copy($filePath, $userFilePath)) {
+                die("Error: Failed to create a copy of the file.");
+            }
+        }
+        $fileUrl = api_get_path(WEB_COURSE_PATH).$newDocPath;
+    }
+
+    $fileId = basename($newDocPath);
+    $absolutePath = $userFilePath;
+    $absoluteParentPath = dirname($userFilePath) . '/';
+    $data = [
+        'type' => 'download',
+        'doctype' => 'exercise',
+        'docPath' => urlencode($newDocPath),
+        'courseId' => api_get_course_int_id(),
+        'userId' => api_get_user_id(),
+        'docId' => $fileId,
+        'sessionId' => api_get_session_id(),
+    ];
+
+    $jwtManager = new OnlyofficeJwtManager($appSettings);
+    $hashUrl = $jwtManager->getHash($data);
+    $callbackUrl = api_get_path(WEB_PLUGIN_PATH) . 'onlyoffice/callback.php?hash=' . $hashUrl;
+    if ($exeId) {
+        $callbackUrl .= '&docPath=' . urlencode($newDocPath);
+    } else {
+        $callbackUrl .= '&docPath=' . urlencode($newDocPath);
+    }
+
+    $docInfo = [
+        'iid' => null,
+        'id' => null,
+        'c_id' => $courseId,
+        'path' => $newDocPath,
+        'comment' => null,
+        'title' => basename($userFilePath),
+        'filetype' => 'file',
+        'size' => filesize($userFilePath),
+        'readonly' => (int) $isReadOnly,
+        'session_id' => $sessionId,
+        'url' => api_get_path(WEB_PLUGIN_PATH) . "onlyoffice/editor.php?doc=" . urlencode($newDocPath) . ($exeId ? "&exeId={$exeId}" : "") . ($isReadOnly ? "&readOnly={$isReadOnly}" : ""),
+        'document_url' => $callbackUrl,
+        'absolute_path' => $absolutePath,
+        'absolute_path_from_document' => '/document/' . basename($userFilePath),
+        'absolute_parent_path' => $absoluteParentPath,
+        'direct_url' => $callbackUrl,
+        'basename' => basename($userFilePath),
+        'parent_id' => false,
+        'parents' => [],
+        'forceEdit' => $_GET['forceEdit'] ?? false,
+        'exercise_id' => $exerciseId,
+    ];
+} elseif ($docId) {
+    $docInfo = DocumentManager::get_document_data_by_id($docId, $courseCode, false, $sessionId);
+    if ($docInfo) {
+        $fileId = $docId;
+        $fileUrl = (new OnlyofficeDocumentManager($appSettings, $docInfo))->getFileUrl($docId);
+    }
+}
+
+if (!$docInfo || !$fileId) {
+    error_log("ERROR: Document not found.");
+    die("Error: Document not found.");
+}
+
 $langInfo = LangManager::getLangUser();
 $jwtManager = new OnlyofficeJwtManager($appSettings);
 if (isset($_GET['forceEdit']) && (bool) $_GET['forceEdit'] === true) {
@@ -55,17 +145,24 @@
 $documentManager = new OnlyofficeDocumentManager($appSettings, $docInfo);
 $extension = $documentManager->getExt($documentManager->getDocInfo('title'));
 $docType = $documentManager->getDocType($extension);
-$key = $documentManager->getDocumentKey($docId, $courseCode);
-$fileUrl = $documentManager->getFileUrl($docId);
+$fileIdentifier = $docId ? (string) $docId : md5($docPath);
+$key = $documentManager->getDocumentKey($fileIdentifier, $courseCode);
+$fileUrl = $fileUrl ?? $documentManager->getFileUrl($fileIdentifier);
 
-if (!empty($appSettings->getStorageUrl())) {
+if (!empty($appSettings->getStorageUrl()) && !empty($fileUrl)) {
     $fileUrl = str_replace(api_get_path(WEB_PATH), $appSettings->getStorageUrl(), $fileUrl);
 }
 
 $configService = new OnlyofficeConfigService($appSettings, $jwtManager, $documentManager);
 $editorsMode = $configService->getEditorsMode();
-$config = $configService->createConfig($docId, $editorsMode, $_SERVER['HTTP_USER_AGENT']);
+$config = $configService->createConfig($fileIdentifier, $editorsMode, $_SERVER['HTTP_USER_AGENT']);
 $config = json_decode(json_encode($config), true);
+
+if (empty($config)) {
+    error_log("ERROR: Failed to generate the configuration for OnlyOffice");
+    die("Error: Failed to generate the configuration for OnlyOffice.");
+}
+
 $isMobileAgent = $configService->isMobileAgent($_SERVER['HTTP_USER_AGENT']);
 
 $showHeaders = true;
@@ -98,11 +195,11 @@
 
     var onRequestSaveAs = function (event) {
         var url = <?php echo json_encode(api_get_path(WEB_PLUGIN_PATH)); ?> + "onlyoffice/ajax/saveas.php";
-        var folderId = <?php echo json_encode($docInfo['parent_id']); ?>;
+        var folderId = <?php echo json_encode($docInfo['parent_id'] ?? 0); ?>;
         var saveData = {
             title: event.data.title,
             url: event.data.url,
-            folderId: folderId ? folderId : 0,
+            folderId: folderId,
             sessionId: <?php echo json_encode($sessionId); ?>,
             courseId: <?php echo json_encode($courseId); ?>,
             groupId: <?php echo json_encode($groupId); ?>
diff --git a/plugin/onlyoffice/lib/onlyofficeConfigService.php b/plugin/onlyoffice/lib/onlyofficeConfigService.php
index 61a39555fdb..6fca962ba44 100644
--- a/plugin/onlyoffice/lib/onlyofficeConfigService.php
+++ b/plugin/onlyoffice/lib/onlyofficeConfigService.php
@@ -86,6 +86,12 @@ public function getAccessRights()
                 }
             }
         }
+
+        // Allow editing if the document is part of an exercise
+        if (!empty($_GET['exerciseId']) || !empty($_GET['exeId'])) {
+            return true;
+        }
+
         $accessRights = $isAllowToEdit || $isMyDir || $isGroupAccess;
 
         return $accessRights;
diff --git a/plugin/onlyoffice/lib/onlyofficeDocumentManager.php b/plugin/onlyoffice/lib/onlyofficeDocumentManager.php
index a051dc0efc4..8ee3faec22d 100644
--- a/plugin/onlyoffice/lib/onlyofficeDocumentManager.php
+++ b/plugin/onlyoffice/lib/onlyofficeDocumentManager.php
@@ -59,8 +59,14 @@ public function getFileUrl(string $fileId)
         ];
 
         if (!empty($this->getGroupId())) {
-            $data['groupId'] = $groupId;
+            $data['groupId'] = $this->getGroupId();
         }
+
+        if (isset($this->docInfo['path']) && str_contains($this->docInfo['path'], 'exercises/')) {
+            $data['doctype'] = 'exercise';
+            $data['docPath'] = urlencode($this->docInfo['path']);
+        }
+
         $jwtManager = new OnlyofficeJwtManager($this->settingsManager);
         $hashUrl = $jwtManager->getHash($data);
 
@@ -76,8 +82,6 @@ public function getGroupId()
 
     public function getCallbackUrl(string $fileId)
     {
-        $url = '';
-
         $data = [
             'type' => 'track',
             'courseId' => api_get_course_int_id(),
@@ -87,38 +91,55 @@ public function getCallbackUrl(string $fileId)
         ];
 
         if (!empty($this->getGroupId())) {
-            $data['groupId'] = $groupId;
+            $data['groupId'] = $this->getGroupId();
+        }
+
+        if (isset($this->docInfo['path']) && str_contains($this->docInfo['path'], 'exercises/')) {
+            $data['doctype'] = 'exercise';
+            $data['docPath'] = urlencode($this->docInfo['path']);
         }
 
         $jwtManager = new OnlyofficeJwtManager($this->settingsManager);
         $hashUrl = $jwtManager->getHash($data);
 
-        return $url.api_get_path(WEB_PLUGIN_PATH).'onlyoffice/callback.php?hash='.$hashUrl;
+        return api_get_path(WEB_PLUGIN_PATH) . 'onlyoffice/callback.php?hash=' . $hashUrl;
     }
 
-    public function getGobackUrl(string $fileId)
+    public function getGobackUrl(string $fileId): string
     {
         if (!empty($this->docInfo)) {
-            return api_get_path(WEB_CODE_PATH).'document/document.php'
-                                                        .'?cidReq='.Security::remove_XSS(api_get_course_id())
-                                                        .'&id_session='.Security::remove_XSS(api_get_session_id())
-                                                        .'&gidReq='.Security::remove_XSS($this->getGroupId())
-                                                        .'&id='.Security::remove_XSS($this->docInfo['parent_id']);
+            if (isset($this->docInfo['path']) && str_contains($this->docInfo['path'], 'exercises/')) {
+                return api_get_path(WEB_CODE_PATH).'exercise/exercise_submit.php'
+                    .'?cidReq='.Security::remove_XSS(api_get_course_id())
+                    .'&id_session='.Security::remove_XSS(api_get_session_id())
+                    .'&gidReq='.Security::remove_XSS($this->getGroupId())
+                    .'&exerciseId='.Security::remove_XSS($this->docInfo['exercise_id']);
+            }
+
+            return self::getUrlToLocation(api_get_course_id(), api_get_session_id(), $this->getGroupId(), $this->docInfo['parent_id'], $this->docInfo['path'] ?? '');
         }
 
         return '';
     }
 
     /**
-     * Return location file in chamilo documents.
+     * Return location file in Chamilo documents or exercises.
      */
-    public static function getUrlToLocation($courseCode, $sessionId, $groupId, $folderId)
+    public static function getUrlToLocation($courseCode, $sessionId, $groupId, $folderId, $filePath = ''): string
     {
+        if (!empty($filePath) && str_contains($filePath, 'exercises/')) {
+            return api_get_path(WEB_CODE_PATH).'exercise/exercise_submit.php'
+                .'?cidReq='.Security::remove_XSS($courseCode)
+                .'&id_session='.Security::remove_XSS($sessionId)
+                .'&gidReq='.Security::remove_XSS($groupId)
+                .'&exerciseId='.Security::remove_XSS($folderId);
+        }
+
         return api_get_path(WEB_CODE_PATH).'document/document.php'
-                                            .'?cidReq='.Security::remove_XSS($courseCode)
-                                            .'&id_session='.Security::remove_XSS($sessionId)
-                                            .'&gidReq='.Security::remove_XSS($groupId)
-                                            .'&id='.Security::remove_XSS($folderId);
+            .'?cidReq='.Security::remove_XSS($courseCode)
+            .'&id_session='.Security::remove_XSS($sessionId)
+            .'&gidReq='.Security::remove_XSS($groupId)
+            .'&id='.Security::remove_XSS($folderId);
     }
 
     public function getCreateUrl(string $fileId)
diff --git a/plugin/onlyoffice/lib/onlyofficeTools.php b/plugin/onlyoffice/lib/onlyofficeTools.php
index 1f87c71f086..9091a99c26f 100644
--- a/plugin/onlyoffice/lib/onlyofficeTools.php
+++ b/plugin/onlyoffice/lib/onlyofficeTools.php
@@ -152,13 +152,8 @@ public static function getButtonCreateNew(): string
 
     /**
      * Return path to OnlyOffice viewer for a given file.
-     *
-     * @param int  $documentId  The ID from c_document.iid
-     * @param bool $showHeaders Whether to show Chamilo headers on top of the OnlyOffice frame or not
-     *
-     * @return string A link to open the OnlyOffice viewer
      */
-    public static function getPathToView(int $documentId, bool $showHeaders = true): string
+    public static function getPathToView($fileReference, bool $showHeaders = true, ?int $exeId = null, ?int $questionId = null, bool $isReadOnly = false): string
     {
         $plugin = OnlyofficePlugin::create();
         $appSettings = new OnlyofficeAppsettings($plugin);
@@ -170,38 +165,66 @@ public static function getPathToView(int $documentId, bool $showHeaders = true):
         }
 
         $urlToEdit = api_get_path(WEB_PLUGIN_PATH).'onlyoffice/editor.php';
+        $queryString = $_SERVER['QUERY_STRING'];
+        $isExercise = str_contains($queryString, 'exerciseId=');
+
+        if (is_numeric($fileReference)) {
+            $documentId = (int) $fileReference;
+            $courseInfo = api_get_course_info();
+            $sessionId = api_get_session_id();
+            $userId = api_get_user_id();
+
+            $docInfo = DocumentManager::get_document_data_by_id($documentId, $courseInfo['code'], false, $sessionId);
+            if (!$docInfo) {
+                return '';
+            }
 
-        $sessionId = api_get_session_id();
-        $courseInfo = api_get_course_info();
-        $userId = api_get_user_id();
-
-        $docInfo = DocumentManager::get_document_data_by_id($documentId, $courseInfo['code'], false, $sessionId);
+            $extension = strtolower(pathinfo($docInfo['path'], PATHINFO_EXTENSION));
+            $canView = null !== $documentManager->getFormatInfo($extension) ? $documentManager->getFormatInfo($extension)->isViewable() : false;
 
-        $extension = strtolower(pathinfo($docInfo['path'], PATHINFO_EXTENSION));
-        $canView = null !== $documentManager->getFormatInfo($extension) ? $documentManager->getFormatInfo($extension)->isViewable() : false;
+            $isGroupAccess = false;
+            $groupId = api_get_group_id();
+            if (!empty($groupId)) {
+                $groupProperties = GroupManager::get_group_properties($groupId);
+                $docInfoGroup = api_get_item_property_info(api_get_course_int_id(), 'document', $documentId, $sessionId);
+                $isGroupAccess = GroupManager::allowUploadEditDocument($userId, $courseInfo['code'], $groupProperties, $docInfoGroup);
 
-        $isGroupAccess = false;
-        $groupId = api_get_group_id();
-        if (!empty($groupId)) {
-            $groupProperties = GroupManager::get_group_properties($groupId);
-            $docInfoGroup = api_get_item_property_info(api_get_course_int_id(), 'document', $documentId, $sessionId);
-            $isGroupAccess = GroupManager::allowUploadEditDocument($userId, $courseInfo['code'], $groupProperties, $docInfoGroup);
+                $urlToEdit.='?'.api_get_cidreq().'&';
+            } else {
+                $urlToEdit.='?'.api_get_cidreq().'&';
+            }
 
-            $urlToEdit = $urlToEdit.'?'.api_get_cidreq().'&';
-        } else {
-            $urlToEdit = $urlToEdit.'?'.api_get_cidreq().'&';
-        }
+            $isMyDir = DocumentManager::is_my_shared_folder($userId, $docInfo['absolute_parent_path'], $sessionId);
+            $accessRights = $isMyDir || $isGroupAccess;
 
-        $isMyDir = DocumentManager::is_my_shared_folder($userId, $docInfo['absolute_parent_path'], $sessionId);
+            $urlToEdit.='docId='.$documentId;
+            if (false === $showHeaders) {
+                $urlToEdit .= '&nh=1';
+            }
 
-        $accessRights = $isMyDir || $isGroupAccess;
+            if ($canView && !$accessRights) {
+                return $urlToEdit;
+            }
+        } else {
+            $urlToEdit .= '?'.$queryString.'&doc='.urlencode($fileReference);
+            if ($isExercise) {
+                $urlToEdit .= '&type=exercise';
+                if ($exeId) {
+                    $urlToEdit .= '&exeId=' . $exeId;
+                }
+
+                if ($questionId) {
+                    $urlToEdit .= '&questionId=' . $questionId;
+                }
+            }
+            if (false === $showHeaders) {
+                $urlToEdit .= '&nh=1';
+            }
 
-        $urlToEdit = $urlToEdit.'docId='.$documentId;
-        if (false === $showHeaders) {
-            $urlToEdit .= '&nh=1';
-        }
+            if (true === $isReadOnly) {
+                $urlToEdit .= '&readOnly=1';
+            }
 
-        if ($canView && !$accessRights) {
             return $urlToEdit;
         }