diff --git a/Layout/default/Calendar/View.php b/Layout/default/Calendar/View.php
index 3bc3eef7d..b8705c7ae 100644
--- a/Layout/default/Calendar/View.php
+++ b/Layout/default/Calendar/View.php
@@ -104,6 +104,7 @@ endforeach;
                                     class="btn btn-light btn-light-search top-search-filter"><i
                                         class="fa-duotone fa-solid fa-phone-volume fa-calendar-call fa-calendar-call-search"></i>
                             </button>
+
                         </div>
                     </div>
                     <?php if (!$rights) : ?>
@@ -111,7 +112,14 @@ endforeach;
                             <span class="font-18 font-weight-500">Du wurdest nicht für den Kalender frei geschalten.</span>
                         </div>
                         <?php die(); endif; ?>
+                    <div class="d-inline-block mr-1">
 
+                            <button title="Excel Export"
+                                    class="btn btn-light btn-xls-calendar">
+                                <i class="fa-duotone fa-solid fa-file-xls fa-xls-calendar"></i>
+
+                    </div>
+                    </button>
                     <div class="d-inline-block w-50 search-div" style="margin-top: -7px;">
                         <select id="jumpevent" class="jumpevent"></select>
                     </div>
@@ -351,142 +359,146 @@ endforeach;
 
         </div>
     </div>
-<div class="modal fade" id="EventModal" aria-labelledby="EventModalLabel" aria-hidden="true">
-    <div class="modal-dialog modal-lg modal-dialog-centered">
-        <div class="modal-content">
-            <div class="modal-header">
-                <h1 class="modal-title font-18 ml-2" id="EventModalLabel"><i
-                            class="fa-duotone fa-solid fa-calendar-symbol"></i> <span>neuer Termin</span></h1>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                    <span aria-hidden="true">&times;</span>
-                </button>
-            </div>
-            <div class="modal-body">
-                <div class="row justify-content-center">
-
-                    <div class="col-1">
-                        <label for="name" class="col-form-label fw-medium ">Betreff</label>
-                    </div>
-                    <div class="col-6">
-                        <div class="mb-2">
-                            <input type="text" class="form-control is-require eventmodal-input" id="name">
-                        </div>
-                    </div>
-                    <div class="col-3">
-                        <div class="input-group mb-2">
-                            <span title="Erinnerung" class="input-group-text spanwidht">Typ</span>
-                            <select class="form-control form-select select-2" aria-label="Default select" id="type">
-                                <option value="1">Termin</option>
-                                <option value="2">IBN Xinon</option>
-                                <option value="3">IBN ESTMK</option>
-                                <option value="4">IBN SNOPP</option>
-                                <option value="5">Störung</option>
-                                <option value="6">Support Gespräch</option>
-                            </select>
-                        </div>
-                    </div>
-                    <div class="col-1 text-center">
-                        <i title="Normal" class="fa-duotone privacy-click fa-regular fa-unlock mt-1"></i>
-                    </div>
-
+    <div class="modal fade" id="EventModal" aria-labelledby="EventModalLabel" aria-hidden="true">
+        <div class="modal-dialog modal-lg modal-dialog-centered">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h1 class="modal-title font-18 ml-2" id="EventModalLabel"><i
+                                class="fa-duotone fa-solid fa-calendar-symbol"></i> <span>neuer Termin</span></h1>
+                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                        <span aria-hidden="true">&times;</span>
+                    </button>
                 </div>
-                <div class="row justify-content-center">
-                    <div class="col-1">
-                        <label for="location" class="col-form-label fw-medium ">Ort</label>
-                    </div>
-                    <div class="col-6">
-                        <div class="mb-2">
-                            <input type="text" class="form-control eventmodal-input" id="location">
+                <div class="modal-body">
+                    <div class="row justify-content-center">
+
+                        <div class="col-1">
+                            <label for="name" class="col-form-label fw-medium ">Betreff</label>
                         </div>
+                        <div class="col-6">
+                            <div class="mb-2">
+                                <input type="text" class="form-control is-require eventmodal-input" id="name">
+                            </div>
+                        </div>
+                        <div class="col-3">
+                            <div class="input-group mb-2">
+                                <span title="Erinnerung" class="input-group-text spanwidht">Typ</span>
+                                <select class="form-control form-select select-2" aria-label="Default select" id="type">
+                                    <option value="1">Termin</option>
+                                    <option value="2">IBN Xinon</option>
+                                    <option value="3">IBN ESTMK</option>
+                                    <option value="4">IBN SNOPP</option>
+                                    <option value="5">Störung</option>
+                                    <option value="6">Support Gespräch</option>
+                                </select>
+                            </div>
+                        </div>
+                        <div class="col-1 text-center">
+                            <i title="Normal" class="fa-duotone privacy-click fa-regular fa-unlock mt-1"></i>
+                        </div>
+
                     </div>
-                    <div class="col-4">
-                        <div class="input-group mb-2">
+                    <div class="row justify-content-center">
+                        <div class="col-1">
+                            <label for="location" class="col-form-label fw-medium ">Ort</label>
+                        </div>
+                        <div class="col-6">
+                            <div class="mb-2">
+                                <input type="text" class="form-control eventmodal-input" id="location">
+                            </div>
+                        </div>
+                        <div class="col-4">
+                            <div class="input-group mb-2">
                             <span title="Erinnerung" class="input-group-text spanwidht"><i
                                         class="fa-regular fa-eye"></i></span>
-                            <select class="form-control form-select" aria-label="Default select" id="busy">
-                                <option value="1">gebucht</option>
-                                <option value="0">frei</option>
-                                <option value="2">mit Vorbehalt</option>
-                            </select>
+                                <select class="form-control form-select" aria-label="Default select" id="busy">
+                                    <option value="1">gebucht</option>
+                                    <option value="0">frei</option>
+                                    <option value="2">mit Vorbehalt</option>
+                                </select>
+                            </div>
                         </div>
                     </div>
-                </div>
 
-                <div class="row justify-content-center">
+                    <div class="row justify-content-center">
 
-                    <div class="col-4">
-                        <div class="input-group mb-2">
-                            <span class="input-group-text spanwidht">Start</span>
-                            <input id="start-date" type="date" class="form-control is-require eventmodal-input"
-                                   placeholder="Datum"
-                                   aria-label="Datum"
-                                   aria-describedby="Datum">
+                        <div class="col-4">
+                            <div class="input-group mb-2">
+                                <span class="input-group-text spanwidht">Start</span>
+                                <input id="start-date" type="date" class="form-control is-require eventmodal-input"
+                                       placeholder="Datum"
+                                       aria-label="Datum"
+                                       aria-describedby="Datum">
+                            </div>
+                        </div>
+                        <div class="col-2">
+                            <input id="start-time" type="time" class="form-control is-require eventmodal-input"
+                                   placeholder="Uhrzeit"
+                                   aria-label="Uhrzeit"
+                                   aria-describedby="Uhrzeit">
+                        </div>
+                        <div class="col-2 text-center">
+                            <div class="form-check" style="margin-top: 7px;">
+
+                                <input class="form-check-input eventmodal-checkbox" type="checkbox" value=""
+                                       id="allday"> <label class="form-check-label fw-medium checkbox-label"
+                                                           for="allday">
+                                    Ganztägig
+                                </label>
+
+                            </div>
+                        </div>
+                        <div class="col-2 text-right">
+                            <div class="form-check" style="margin-top: 7px;">
+                                <input class="form-check-input eventmodal-checkbox" type="checkbox" value=""
+                                       id="recurringCheck">
+                                <label class="form-check-label fw-medium checkbox-label" for="recurringCheck">
+                                    Serientermin
+                                </label>
+                            </div>
                         </div>
                     </div>
-                    <div class="col-2">
-                        <input id="start-time" type="time" class="form-control is-require eventmodal-input"
-                               placeholder="Uhrzeit"
-                               aria-label="Uhrzeit"
-                               aria-describedby="Uhrzeit">
-                    </div>
-                    <div class="col-2 text-center">
-                        <div class="form-check" style="margin-top: 7px;">
-
-                            <input class="form-check-input eventmodal-checkbox" type="checkbox" value=""
-                                   id="allday"> <label class="form-check-label fw-medium checkbox-label" for="allday">
-                                Ganztägig
-                            </label>
+                    <div class="row  justify-content-center">
 
+                        <div class="col-4">
+                            <div class="input-group mb-2">
+                                <span class="input-group-text spanwidht">Ende</span>
+                                <input id="end-date" type="date" class="form-control is-require eventmodal-input"
+                                       placeholder="Datum"
+                                       aria-label="Datum"
+                                       aria-describedby="Datum">
+                            </div>
                         </div>
-                    </div>
-                    <div class="col-2 text-right">
-                        <div class="form-check" style="margin-top: 7px;">
-                            <input class="form-check-input eventmodal-checkbox" type="checkbox" value="" id="recurringCheck">
-                            <label class="form-check-label fw-medium checkbox-label" for="recurringCheck">
-                                Serientermin
-                            </label>
+                        <div class="col-2">
+                            <input id="end-time" type="time" class="form-control is-require eventmodal-input"
+                                   placeholder="Uhrzeit"
+                                   aria-label="Uhrzeit"
+                                   aria-describedby="Uhrzeit">
                         </div>
-                    </div>
-                </div>
-                <div class="row  justify-content-center">
-
-                    <div class="col-4">
-                        <div class="input-group mb-2">
-                            <span class="input-group-text spanwidht">Ende</span>
-                            <input id="end-date" type="date" class="form-control is-require eventmodal-input"
-                                   placeholder="Datum"
-                                   aria-label="Datum"
-                                   aria-describedby="Datum">
-                        </div>
-                    </div>
-                    <div class="col-2">
-                        <input id="end-time" type="time" class="form-control is-require eventmodal-input"
-                               placeholder="Uhrzeit"
-                               aria-label="Uhrzeit"
-                               aria-describedby="Uhrzeit">
-                    </div>
-                    <div class="col-4">
-                        <div class="input-group mb-2">
+                        <div class="col-4">
+                            <div class="input-group mb-2">
                             <span title="Erinnerung" class="input-group-text spanwidht"><i
                                         class="fa-regular fa-bell"></i></span>
-                            <select class="form-control form-select select2" aria-label="Default select" id="reminder">
-                                <option value="NULL">Keine</option>
-                                <option value="0">Zum Termin</option>
-                                <option value="300">5 Minuten</option>
-                                <option value="600">10 Minuten</option>
-                                <option value="900">15 Minuten</option>
-                                <option value="1800">30 Minuten</option>
-                                <option value="3600">1 Stunde</option>
-                                <option value="86400">1 Tag</option>
-                                <option value="604800">1 Woche</option>
-                            </select>
+                                <select class="form-control form-select select2" aria-label="Default select"
+                                        id="reminder">
+                                    <option value="NULL">Keine</option>
+                                    <option value="0">Zum Termin</option>
+                                    <option value="300">5 Minuten</option>
+                                    <option value="600">10 Minuten</option>
+                                    <option value="900">15 Minuten</option>
+                                    <option value="1800">30 Minuten</option>
+                                    <option value="3600">1 Stunde</option>
+                                    <option value="86400">1 Tag</option>
+                                    <option value="604800">1 Woche</option>
+                                </select>
+                            </div>
                         </div>
                     </div>
-                </div>
-                <!-- Serientermin-Checkbox und zugehörige RRule-Optionen -->
-                <div class="row" id="recurring-settings" style="display:none;">
-                    <div class="col-1"></div>
-                    <div class="col-3"">
+                    <!-- Serientermin-Checkbox und zugehörige RRule-Optionen -->
+                    <div class="row" id="recurring-settings" style="display:none;">
+                        <div class="col-1"></div>
+                        <div class="col-3"
+                        ">
                         <!-- Frequenz: Täglich / Wöchentlich / Monatlich / Jährlich -->
                         <div class="mb-2">
                             <label for="rrule-frequency" class="col-form-label fw-medium">Wiederholungstyp</label>
@@ -509,7 +521,7 @@ endforeach;
                             <input type="date" class="form-control" id="rrule-until">
                         </div>
                     </div>
-                        <!-- Wöchentliche Optionen (z.B. jeden Dienstag, jeden Freitag + Montag) -->
+                    <!-- Wöchentliche Optionen (z.B. jeden Dienstag, jeden Freitag + Montag) -->
                     <div class="col-7">
                         <div class="mb-2" id="weekly-options" style="display:none;">
                             <label for="rrule-byweekday" class="col-form-label fw-medium">Wochentag(e)</label>
@@ -534,7 +546,7 @@ endforeach;
                                 <label class="mr-2 col-form-label fw-medium col-2">Tag:</label>
                                 <select class="form-control w-auto col-3" id="rrule-bymonthday">
                                     <!-- Auswahl 1–31 -->
-                                    <?php for($i=1; $i<=31; $i++): ?>
+                                    <?php for ($i = 1; $i <= 31; $i++): ?>
                                         <option value="<?= $i ?>"><?= $i ?></option>
                                     <?php endfor; ?>
                                 </select>
@@ -658,6 +670,7 @@ endforeach;
                                 </div>
                                 <div class="d-inline-block" id="customer-info-check-info"></div>
                             </div>
+
                             <div id="relContainer2" style="position:relative">
                                 <select id="customer" class="jumpevent"></select>
                             </div>
@@ -739,13 +752,16 @@ endforeach;
     </div>
 
     <div id="output"></div>
-    <script type="text/javascript" src="<?= self::getResourcePath() ?>plugins/select2/js/i18n/de.js?<?= $git_merge_ts ?>"></script>
-    <script type="text/javascript" src="<?=self::getResourcePath()?>plugins/tinymce/tinymce.min.js?<?= $git_merge_ts ?>"></script>
+    <script type="text/javascript"
+            src="<?= self::getResourcePath() ?>plugins/select2/js/i18n/de.js?<?= $git_merge_ts ?>"></script>
+    <script type="text/javascript"
+            src="<?= self::getResourcePath() ?>plugins/tinymce/tinymce.min.js?<?= $git_merge_ts ?>"></script>
 
     <script>
         let requestUrl = "<?= self::getUrl("Calendar", "api", ['do' => 'getCalendarEvents']) ?>";
         let requestEventUrl = "<?= self::getUrl("Calendar", "api", ['do' => 'getCalendarEvent']) ?>";
         let requestEventSearchURL = "<?= self::getUrl("Calendar", "api", ['do' => 'searchCalendarEvents']) ?>";
+        let requestgenerateEventsxlsx = "<?= self::getUrl("Calendar", "api", ['do' => 'generateCalendarEventsXlsx']) ?>";
         let requestEventAttachmentUrl = "<?= self::getUrl("Calendar", "api", ['do' => 'getCalendarEventAttachment']) ?>";
         let requestEventAttachmentTmpUrl = "<?= self::getUrl("Calendar", "api", ['do' => 'getCalendarEventAttachmentTmp']) ?>";
         let requestEventAttachmentTmpDeleteUrl = "<?= self::getUrl("Calendar", "api", ['do' => 'deleteCalendarEventAttachmentTmp']) ?>";
diff --git a/application/Calendar/CalendarController.php b/application/Calendar/CalendarController.php
index 8ec0c586d..8ea34fd6d 100644
--- a/application/Calendar/CalendarController.php
+++ b/application/Calendar/CalendarController.php
@@ -1,5 +1,12 @@
 <?php
 
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+use PhpOffice\PhpSpreadsheet\Style\Alignment;
+use PhpOffice\PhpSpreadsheet\Style\Border;
+use PhpOffice\PhpSpreadsheet\Style\Color;
+use PhpOffice\PhpSpreadsheet\Helper\Html;
+
 class CalendarController extends mfBaseController
 {
 
@@ -45,6 +52,11 @@ class CalendarController extends mfBaseController
                 $calendarEvents = CalendarModel::searchCalendarEvents($r);
                 return $calendarEvents;
                 die();
+            case "generateCalendarEventsXlsx" :
+                $r = $this->request;
+                $this->generateXlsx($r);
+                return $calendarEvents;
+                die();
             case "getCalendarEventAttachment" :
                 $r = $this->request;
                 $id = ($r->id);
@@ -110,9 +122,9 @@ class CalendarController extends mfBaseController
             case "insertCalendarEvent":
                 $r = $this->request;
                 if ($r->rruleData) {
-                   $rrules=json_encode($this->generateGraphRecurrence($r->rruleData, $r->start));
+                    $rrules = json_encode($this->generateGraphRecurrence($r->rruleData, $r->start));
                 }
-                $calendarEvents = CalendarModel::insertCalendarEvent($r, $this->me,$rrules);
+                $calendarEvents = CalendarModel::insertCalendarEvent($r, $this->me, $rrules);
                 if ($r->customer_info_check) {
                     if ($r->customer_info_type == 1) {
                         $body = $r->customer_info_text;
@@ -392,10 +404,11 @@ class CalendarController extends mfBaseController
         die();
     }
 
-    private function generateGraphRecurrence($data, $startDate) {
+    private function generateGraphRecurrence($data, $startDate)
+    {
         $graph = [
             'pattern' => [],
-            'range'   => []
+            'range' => []
         ];
         $freq = strtoupper($data['rrule_frequency']);
         switch ($freq) {
@@ -414,10 +427,10 @@ class CalendarController extends mfBaseController
                     // Mapping: 1 => first, 2 => second, 3 => third, 4 => fourth, -1 => last
                     $setpos = intval($data['rrule_setpos']);
                     $indexMapping = [
-                        1  => 'first',
-                        2  => 'second',
-                        3  => 'third',
-                        4  => 'fourth',
+                        1 => 'first',
+                        2 => 'second',
+                        3 => 'third',
+                        4 => 'fourth',
                         -1 => 'last'
                     ];
                     $graph['pattern']['index'] = isset($indexMapping[$setpos]) ? $indexMapping[$setpos] : 'first';
@@ -438,7 +451,7 @@ class CalendarController extends mfBaseController
         if ($freq === 'WEEKLY' && !empty($data['rrule-byweekday'])) {
             $days = is_array($data['rrule-byweekday']) ? $data['rrule-byweekday'] : [$data['rrule-byweekday']];
             $graphDays = [];
-            foreach($days as $day) {
+            foreach ($days as $day) {
                 $graphDays[] = $this->convertDayToGraph(strtoupper($day));
             }
             $graph['pattern']['daysOfWeek'] = $graphDays;
@@ -459,7 +472,8 @@ class CalendarController extends mfBaseController
     }
 
 
-    private function convertDayToGraph($dayAbbrev) {
+    private function convertDayToGraph($dayAbbrev)
+    {
         $mapping = [
             'MO' => 'monday',
             'TU' => 'tuesday',
@@ -472,6 +486,104 @@ class CalendarController extends mfBaseController
         return isset($mapping[$dayAbbrev]) ? $mapping[$dayAbbrev] : $dayAbbrev;
     }
 
+    private function generateXlsx($r)
+    {
+        $calendarEvents = json_decode(CalendarModel::getCalendarEvents($this->me->id, 0, $r, true), true);
+        $eventTypes = CalendarModel::$eventTypes;
+        $xls = new Spreadsheet();
+        $sheet = $xls->getActiveSheet();
+        $writer = new Xlsx($xls);
+        $sheet->getStyle('A1:AN1')->getFont()->setBold(true);
+        $sheet->getStyle('A:E')->getAlignment()->setHorizontal(\PhpOffice\PhpSpreadsheet\Style\Alignment::HORIZONTAL_CENTER);
+        $sheet->getStyle('I:L')->getAlignment()->setHorizontal(\PhpOffice\PhpSpreadsheet\Style\Alignment::HORIZONTAL_CENTER);
+        $sheet->getColumnDimension('A')->setWidth(25);
+        $sheet->getColumnDimension('B')->setWidth(15);
+        $sheet->getColumnDimension('C')->setWidth(10);
+        $sheet->getColumnDimension('D')->setWidth(15);
+        $sheet->getColumnDimension('E')->setWidth(10);
+        $sheet->getColumnDimension('F')->setWidth(40);
+        $sheet->getColumnDimension('G')->setWidth(40);
+        $sheet->getColumnDimension('H')->setWidth(20);
+        $sheet->getColumnDimension('I')->setWidth(10);
+        $sheet->getColumnDimension('J')->setWidth(10);
+        $sheet->getColumnDimension('K')->setWidth(15);
+        $sheet->getColumnDimension('L')->setWidth(15);
+
+
+        $sheet->setCellValue([1, 1], 'Kalender')
+            ->setCellValue([2, 1], 'Startdatum')
+            ->setCellValue([3, 1], 'Startzeit')
+            ->setCellValue([4, 1], 'Enddatum')
+            ->setCellValue([5, 1], 'Endzeit')
+            ->setCellValue([6, 1], 'Betreff')
+            ->setCellValue([7, 1], 'Ort')
+            ->setCellValue([8, 1], 'Beschreibung')
+            ->setCellValue([9, 1], 'Termintyp')
+            ->setCellValue([10, 1], 'Privat')
+            ->setCellValue([11, 1], 'Sichtbarkeit')
+            ->setCellValue([12, 1], 'Organisator')
+
+        ;
+        $counter = 2;
+        foreach ($calendarEvents['data'] as $event) {
+            if ($event['privateflag']['privateflag']) {
+                $event['privateflag']['privateflag'] = "Ja";
+            } else {
+                $event['privateflag']['privateflag'] = "Nein";
+            }
+            if ($event['isorganizer']['isorganizer']) {
+                $event['isorganizer']['isorganizer'] = "Ja";
+            } else {
+                $event['isorganizer']['isorganizer'] = "Nein";
+            }
+            if ($event['busy']['busy'] == 1) {
+                $event['busy']['busy'] = "gebucht";
+            } else if ($event['busy']['busy'] == 2) {
+                $event['busy']['busy'] = "mit Vorbehalt";
+            } else {
+                $event['busy']['busy'] = "frei";
+            }
+
+            if ($event['allDay']['allDay'] == 0) {
+                $starttime = date("H:i", strtotime($event['cstart']['cstart']));
+                $endtime = date("H:i", strtotime($event['cend']['cend']));
+                $startdate = date("d.m.Y", strtotime($event['cstart']['cstart']));
+                $enddate = date("d.m.Y", strtotime($event['cend']['cend']));
+            } else {
+                $starttime = "";
+                $startdate = date("d.m.Y", strtotime($event['cstart']['cstart']));
+                $endtime = "";
+                $enddate = date("d.m.Y", strtotime($event['cend']['cend']) - 7500);
+            }
+            if ($event['event_type']['event_type'] != "") {
+                $helper = new Html();
+                $richText = $helper->toRichTextObject($event['description']['description']);
+                $calendarType = $eventTypes[$event['event_type']['event_type']];
+                $sheet->setCellValue([1, $counter], $event['calendar_name']['calendar_name'])
+                    ->setCellValue([2, $counter], $startdate)
+                    ->setCellValue([3, $counter], $starttime)
+                    ->setCellValue([4, $counter], $enddate)
+                    ->setCellValue([5, $counter], $endtime)
+                    ->setCellValue([6, $counter], $event['ccategory']['ccategory'])
+                    ->setCellValue([7, $counter], $event['location']['location'])
+                    ->setCellValue([8, $counter], $richText)
+                    ->setCellValue([9, $counter], $calendarType)
+                    ->setCellValue([10, $counter], $event['privateflag']['privateflag'])
+                    ->setCellValue([11, $counter], $event['busy']['busy'])
+                    ->setCellValue([12, $counter], $event['isorganizer']['isorganizer'])
+                ;
+                $counter++;
+            }
+        }
+        header("Content-type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+
+        header('Content-disposition: attachment; filename="Kalender-' . date('Y-m-d_H-i-s') . '-' . uniqid() . '.xlsx"');
+        $writer->save('php://output');
+        exit;
+
+
+    }
+
     protected function indexAction()
     {
         $this->layout()->setTemplate("Calendar/Index");
diff --git a/application/Calendar/CalendarModel.php b/application/Calendar/CalendarModel.php
index efa2b8a39..e54c67db1 100644
--- a/application/Calendar/CalendarModel.php
+++ b/application/Calendar/CalendarModel.php
@@ -32,6 +32,15 @@ class CalendarModel
         '690', // Spusu
         '699'  // 3 (Drei)
     );
+
+    public static $eventTypes = array(
+        1 => 'Termin',
+        2 => 'IBN Xinon',
+        3 => 'IBN  ESTMK',
+        4 => 'IBN Snopp',
+        5 => 'Störung',
+        6 => 'Support Gespräch'
+    );
     public static $standardCalendarColors = [
         '#b3d5f3', '#d0e2c0', '#bac2d4', '#c6d4c0', '#e3e3e3',
         '#acdce5', '#cdb6c0', '#aae0e1', '#d9d9d9', '#d9e5d5',
@@ -149,7 +158,7 @@ class CalendarModel
         die();
     }
 
-    public static function getCalendarEvents($me, $id = 0, $r = 0)
+    public static function getCalendarEvents($me, $id = 0, $r = 0, $returnvalues = false)
     {
         $rrulefreq = array('daily' => 'DAILY', 'weekly' => 'WEEKLY', 'relativeMonthly' => 'MONTHLY', 'yearly' => 'YEARLY', 'absoluteMonthly' => 'absoluteMonthly');
         $calendar = self::search(array("user_id" => $me));
@@ -196,7 +205,7 @@ class CalendarModel
         }
 
 
-        $sql = "SELECT `cal_events`.id,`cal_events`.categories, uuid, calendar_id, `cal_events`.user_id, start_time, end_time, timezone, all_day_event, `cal_events`.name,`cal_calendars`.name calendar_name, description, location, repeat_end_time, reminder, ctime,cname, mtime,mname, muser_id, busy, status, resource_event_id, private, rrule, `cal_events`.background, `cal_events`.files_folder_id, read_only, category_id, exception_for_event_id, recurrence_id, is_organizer,event_type,busy,recurrence,rrule_events FROM cal_events INNER JOIN `cal_calendars` ON (`cal_calendars`.`id`=`cal_events`.`calendar_id`) WHERE 1=1 $where ";
+        $sql = "SELECT `cal_events`.id,`cal_events`.categories, uuid, calendar_id, `cal_events`.user_id, start_time, end_time, timezone, all_day_event, `cal_events`.name,`cal_calendars`.name calendar_name, description, location, repeat_end_time, reminder, ctime,cname, mtime,mname, muser_id, busy, status, resource_event_id, private, rrule, `cal_events`.background, `cal_events`.files_folder_id, read_only, category_id, exception_for_event_id, recurrence_id, is_organizer,event_type,busy,recurrence,rrule_events FROM cal_events INNER JOIN `cal_calendars` ON (`cal_calendars`.`id`=`cal_events`.`calendar_id`) WHERE 1=1 $where ORDER BY start_time DESC";
 
         $res = $dbcal->query($sql);
         if ($dbcal->num_rows($res)) {
@@ -384,7 +393,7 @@ WHERE `TimerecordingCategory`.`hourday`!='1' AND `TimerecordingCategory`.`hourda
 
 
         $json = json_encode($json);
-        if ($id == 0) {
+        if ($id == 0 && $returnvalues == false) {
             echo trim($json);
             die();
         } else {
diff --git a/public/css/pages/Calendar/View.css b/public/css/pages/Calendar/View.css
index 1af4c7d8c..bf51586b5 100644
--- a/public/css/pages/Calendar/View.css
+++ b/public/css/pages/Calendar/View.css
@@ -673,11 +673,12 @@ thead .fc-day-today .fc-scrollgrid-sync-inner .fc-col-header-cell-cushion {
     margin-left: -28px;
     margin-top: 4px;
 }
-.cursor-alias{
+
+.cursor-alias {
     cursor: alias;
 }
-.fa-calendar-alert
-{
+
+.fa-calendar-alert {
     font-size: 15px;
     vertical-align: top;
     margin-top: -1px;
@@ -688,57 +689,65 @@ thead .fc-day-today .fc-scrollgrid-sync-inner .fc-col-header-cell-cushion {
     color: #ff0000;
     opacity: 0.7;
 }
+
 .fa-calendar-alert:before {
     color: #fff;
 
 }
-.fa-calendar-alert-search
-{
+
+.fa-calendar-alert-search {
     font-size: 22px;
 
 }
-.logo-top-search
-{
+
+.logo-top-search {
     height: 20px;
     vertical-align: top;
     cursor: pointer;
 }
-.btn-light-search
-{
+
+.btn-light-search {
     border-color: #e5e5e5;
     padding: 3px 6px;
 }
-.top-search-filter
-{
-    filter:grayscale(100%);
+
+.top-search-filter {
+    filter: grayscale(100%);
 }
+
 .fc-event-time {
     z-index: 100;
 }
+
 .note-editor .dropdown-item {
     padding: .15rem 1.2rem;
 }
+
 .note-editable p {
     line-height: 1.2;
     margin-bottom: 0;
 }
+
 .tooltip-description p {
     margin-bottom: 0;
     line-height: 1.2;
 }
+
 .note-dropdown-menu {
     max-height: 250px !important;
     overflow-y: auto !important;
     z-index: 99999 !important;
 }
+
 .tox-dialog {
     z-index: 1060 !important; /* oder ein höherer Wert, je nach Bedarf */
 }
+
 .tox .tox-tbtn--select {
     max-width: 95px;
 }
-.fa-calendar-call
-{
+
+.fa-calendar-call {
     font-size: 13px;
     vertical-align: top;
     margin-top: 0px;
@@ -748,12 +757,30 @@ thead .fc-day-today .fc-scrollgrid-sync-inner .fc-col-header-cell-cushion {
     color: #ff0000;
     opacity: 1;
 }
+
 .fa-calendar-call:before {
     content: "\f2a0";
     color: #000000;
     opacity: 1;
 }
+
 .fa-calendar-call-search {
     font-size: 21px;
     margin-top: 0px;
-}
\ No newline at end of file
+}
+
+.fa-xls-calendar {
+    font-size: 24px;
+    padding-top: 2px;
+    padding-bottom: 2px;
+}
+
+.btn-xls-calendar {
+    padding: 3px 6px;
+    background-color: #ffffff;
+}
+
+.btn-xls-calendar:hover, .btn-xls-calendar:focus, .btn-xls-calendar:active {
+    background-color: #ffffff !important;
+    border-color: #ffffff !important;
+}
diff --git a/public/js/pages/Calendar/View.js b/public/js/pages/Calendar/View.js
index cecdd60dd..bcb318675 100644
--- a/public/js/pages/Calendar/View.js
+++ b/public/js/pages/Calendar/View.js
@@ -556,8 +556,7 @@ document.addEventListener('DOMContentLoaded', function () {
                                 $('.show-attendee').hide();
                                 $('#recurringCheck').prop('checked', true);
                                 $('#recurringCheck').change();
-                                if (data.data.recurrence)
-                                {
+                                if (data.data.recurrence) {
                                     $('#rrule-frequency').val(data.data.recurrence.recurrence.rrule_frequency);
                                     $('#rrule-frequency').trigger('change');
                                     $('#rrule-interval').val(data.data.recurrence.recurrence.rrule_interval);
@@ -1321,26 +1320,26 @@ $(document).ready(function () {
             users.push($(this).val());
         });
 
-            if ($('#recurringCheck').is(':checked') && $('#rrule-frequency').val() !== '') {
-                var rruleData = {};
-                rruleData.rrule_frequency = $('#rrule-frequency').val();
+        if ($('#recurringCheck').is(':checked') && $('#rrule-frequency').val() !== '') {
+            var rruleData = {};
+            rruleData.rrule_frequency = $('#rrule-frequency').val();
 
-                if (rruleData.rrule_frequency === 'WEEKLY') {
-                    // Mehrere Wochentage als Array
-                    rruleData['rrule-byweekday'] = $('#rrule-byweekday').val();
-                } else if (rruleData.rrule_frequency === 'MONTHLY') {
-                    rruleData.monthly_type = $('#monthly-type').val();
-                    if (rruleData.monthly_type === 'BYMONTHDAY') {
-                        rruleData.rrule_bymonthday = $('#rrule-bymonthday').val();
-                    } else if (rruleData.monthly_type === 'BYSETPOS') {
-                        rruleData.rrule_setpos = $('#rrule-setpos').val();
-                        rruleData.rrule_bynweekday = $('#rrule-bynweekday').val();
-                    }
+            if (rruleData.rrule_frequency === 'WEEKLY') {
+                // Mehrere Wochentage als Array
+                rruleData['rrule-byweekday'] = $('#rrule-byweekday').val();
+            } else if (rruleData.rrule_frequency === 'MONTHLY') {
+                rruleData.monthly_type = $('#monthly-type').val();
+                if (rruleData.monthly_type === 'BYMONTHDAY') {
+                    rruleData.rrule_bymonthday = $('#rrule-bymonthday').val();
+                } else if (rruleData.monthly_type === 'BYSETPOS') {
+                    rruleData.rrule_setpos = $('#rrule-setpos').val();
+                    rruleData.rrule_bynweekday = $('#rrule-bynweekday').val();
                 }
-                // Optionale Felder
-                rruleData.rrule_count = $('#rrule-count').val();
-                rruleData.rrule_until = $('#rrule-until').val();
             }
+            // Optionale Felder
+            rruleData.rrule_count = $('#rrule-count').val();
+            rruleData.rrule_until = $('#rrule-until').val();
+        }
 
 
         $.post(requestInsertUrl, {
@@ -2094,6 +2093,63 @@ $(document).ready(function () {
         }
     });
 
+    $("body").on("click", ".fa-xls-calendar", function (e) {
+        let checkbox = $(".calendar-check");
+        let calendarFilter = $('.btn-light-search');
+        let visibleCalendars = [];
+        let visibleCalendarTypes = [];
+        let mycalendar_id = $('#calendar-id').data('calendarid');
+        visibleCalendars.push(0);
+        checkbox.each(function () {
+            if ($(this).prop('checked')) {
+                visibleCalendars.push($(this).data('calendar_id'));
+            }
+        });
+        calendarFilter.each(function () {
+            if (!$(this).hasClass('top-search-filter')) {
+                visibleCalendarTypes.push($(this).data('ctype'));
+            }
+        });
+
+
+        $.ajax({
+            url: requestgenerateEventsxlsx,
+            method: 'POST',
+            data: {
+                visibleCalendars: visibleCalendars,
+                visibleCalendarTypes: visibleCalendarTypes
+            },
+            xhrFields: {
+                responseType: 'blob' // Erwartet binäre Daten als Blob
+            },
+            success: function (data, status, xhr) {
+                // Header auslesen, um den Dateinamen zu erhalten
+                var disposition = xhr.getResponseHeader('Content-Disposition');
+                var filename = "download.xlsx";
+                if (disposition && disposition.indexOf('attachment') !== -1) {
+                    var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/;
+                    var matches = filenameRegex.exec(disposition);
+                    if (matches != null && matches[1]) {
+                        filename = matches[1].replace(/['"]/g, '');
+                    }
+                }
+                // Blob in eine URL umwandeln und Download auslösen
+                var url = window.URL.createObjectURL(data);
+                var a = document.createElement('a');
+                a.href = url;
+                a.download = filename;
+                document.body.appendChild(a);
+                a.click();
+                a.remove();
+                window.URL.revokeObjectURL(url);
+            },
+            error: function (jqXHR, status, error) {
+                console.error("Download error:", error);
+            }
+        });
+    });
+
+
     $("body").on("blur", ".cal-group-name-input", function (e) {
         let groupname = $.trim($(this).val());
         if (groupname.length > 3) {
@@ -2461,7 +2517,7 @@ $(document).ready(function () {
             ;
         });
     }
-    
+
     $(document).on('focusin', function (e) {
         if ($(e.target).closest(".tox-tinymce, .tox-tinymce-aux, .moxman-window, .tam-assetmanager-root").length) {
             e.stopImmediatePropagation();
@@ -2472,7 +2528,7 @@ $(document).ready(function () {
         $('#recurringCheck').on('change', function () {
             if ($(this).is(':checked')) {
                 $('#recurring-settings').show();
-                $('#rrule-until').attr('min' , $('#start-date').val());
+                $('#rrule-until').attr('min', $('#start-date').val());
             } else {
                 $('#recurring-settings').hide();
                 $('#weekly-options').hide();