diff --git a/README.md b/README.md
index d14334e..063f39a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,14 @@
-### XRechnung4OXID
+### Installation
+
+## Datenbank
+    ALTER TABLE `oxorder`
+    ADD COLUMN `D3LEITWEGID` VARCHAR(25) NOT NULL COMMENT 'xRechnung' AFTER `OSC_AMAZON_REMARK`
+
+## Composer
+    composer require d3/xrechnung:dev-modules/rel_mod_xrechnung
+
+## Zugangsdaten
+  Die Zugangdaten hinter https://xrechnung.DOMAIN.TLD/xrechnung.php? entsprechend modifizieren - .env.
+
 
 
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..f61f220
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,37 @@
+{
+  "name": "d3/xrechnung",
+  "description": "xRechnung",
+  "type": "oxideshop-module",
+  "keywords": [
+    "oxid",
+    "modules",
+    "eShop",
+    "d3"
+  ],
+  "authors": [
+    {
+      "name": "D3 Data Development (Inh. Thomas Dartsch)",
+      "email": "info@shopmodule.com",
+      "homepage": "https://www.d3data.de",
+      "role": "Owner"
+    }
+  ],
+  "support": {
+    "email": "support@shopmodule.com"
+  },
+  "homepage": "https://www.oxidmodule.com/",
+
+  "require": {
+  },
+  "extra": {
+    "oxideshop": {
+      "source-directory": "/src",
+      "target-directory": "d3/xrechnung"
+    }
+  },
+  "autoload": {
+    "psr-4": {
+      "D3\\XRechnung\\": "../../../source/modules/d3/xrechnung"
+    }
+  }
+}
diff --git a/src/Application/views/admin/blocks/order_overview.tpl b/src/Application/views/admin/blocks/order_overview.tpl
new file mode 100644
index 0000000..1154ff7
--- /dev/null
+++ b/src/Application/views/admin/blocks/order_overview.tpl
@@ -0,0 +1,51 @@
+[{$smarty.block.parent}]
+
+[{if $edit && $oView->d3CanExport() && $oViewConf->getActiveClassName()|oxlower == 'order_overview'}]
+    <br>
+    <form name="d3CreateXml" id="d3CreateXml" action="[{$oViewConf->getSelfLink()}]" method="post" target="expXML">
+        [{$oViewConf->getHiddenSid()}]
+        <input type="hidden" name="cl" value="order_overview">
+        <input type="hidden" name="fnc" value="createXRechnung">
+        <input type="hidden" name="oxid" value="[{$oxid}]">
+        <input type="hidden" name="xmllanguage" value="0">
+        <fieldset style="padding: 5px">
+            <legend>xRechnung</legend>
+            <table style="width: 100%">
+                <tr>
+                    <td rowspan="3">
+                        <img src="[{$oViewConf->getModuleUrl('d3xrechnung', 'out/img/xrechnung.png')}]" style="height:4em;width:4em" alt="[{oxmultilang ident="D3_PDFDOCUMENTS"}]">
+                    </td>
+                    <td style="vertical-align: top; text-align: right" class="edittext">
+                        <label for="exporttype">xRechnung</label>:&nbsp;
+                        <select id="exporttype" name="pdftype" class="editinput" style="width:80px;">
+                            <option value="xml" SELECTED>XML
+                        </select>
+                    </td>
+                </tr>
+                <tr>
+                    <td style="text-align: right" class="edittext">
+                        <label for="xmllanguage">Leitweg-ID:</label>
+                        <input type="text" class="editinput" size="15" maxlength="[{$edit->oxorder__d3leitwegid->fldmax_length}]" name="editval[oxorder__d3leitwegid]"
+                               value="[{$edit->oxorder__d3leitwegid->value}]" [{$readonly}]>
+                    </td>
+                </tr>
+                [{*<tr>
+                    <td style="text-align: right" class="edittext">
+                        <label for="xmllanguage">Sprache</label>
+                        <select id="xmllanguage" name="pdflanguage" class="saveinnewlanginput" style="width:80px;">
+                            [{foreach from=$alangs key=lang item=slang}]
+                                <option value="[{$lang}]" [{if $lang == "0"}]SELECTED[{/if}]>[{$slang}]</option>
+                            [{/foreach}]
+                        </select>
+                    </td>
+                </tr>*}]
+                <tr>
+                    <td style="text-align: right" class="edittext"><br/>
+                        <input type="submit" class="edittext" name="save" value="Export">
+                        <iframe name="expXML" style="width: 0; height: 0; border: none; display:none;"></iframe>
+                    </td>
+                </tr>
+            </table>
+        </fieldset>
+    </form>
+[{/if}]
\ No newline at end of file
diff --git a/src/Application/views/admin/de/config_lang.php b/src/Application/views/admin/de/config_lang.php
new file mode 100644
index 0000000..6b2181d
--- /dev/null
+++ b/src/Application/views/admin/de/config_lang.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * This Software is the property of Data Development and is protected
+ * by copyright law - it is NOT Freeware.
+ *
+ * Any unauthorized use of this software without a valid license
+ * is a violation of the license agreement and will be prosecuted by
+ * civil and criminal law.
+ *
+ * http://www.shopmodule.com
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <support@shopmodule.com>
+ * @link      http://www.oxidmodule.com
+ */
+
+// @codeCoverageIgnoreStart
+
+$sLangName = "Deutsch";
+$iLangNr   = 0;
+
+$aLang = array(
+    //Navigation
+    'charset'                                            => 'UTF-8',
+    'SHOP_MODULE_GROUP_d3xrechnung'                      => 'Einstellungen',
+    'SHOP_MODULE_d3xrechnung_PATH_GENERATOR'             => 'Pfad xRechnung',
+    'SHOP_MODULE_d3xrechnung_HTACCESS_USER'              => '.htaccess - User',
+    'SHOP_MODULE_d3xrechnung_HTACCESS_PASSWORD'          => '.htaccess - Password',
+);
\ No newline at end of file
diff --git a/src/Modules/Application/Controller/Admin/OrderOverview.php b/src/Modules/Application/Controller/Admin/OrderOverview.php
new file mode 100644
index 0000000..fb9ce80
--- /dev/null
+++ b/src/Modules/Application/Controller/Admin/OrderOverview.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace D3\XRechnung\Modules\Application\Controller\Admin;
+
+use OxidEsales\Eshop\Core\Registry;
+
+class OrderOverview extends OrderOverview_parent
+{
+    public function createXRechnung()
+    {
+        $soxId = $this->getEditObjectId();
+        if ($soxId != "-1" && isset($soxId)) {
+            // load object
+            $oOrder = oxNew(\OxidEsales\Eshop\Application\Model\Order::class);
+            if ($oOrder->load($soxId)) {
+                $oConfig = $this->getConfig();
+                $aParams = $oConfig->getRequestParameter("editval");
+
+                if($aParams["oxorder__d3leitwegid"])
+                {
+                    $oOrder->assign(
+                        array('d3leitwegid'     =>      $aParams["oxorder__d3leitwegid"])
+                    );
+                    $oOrder->save();
+                }
+
+                $oUtils = \OxidEsales\Eshop\Core\Registry::getUtils();
+                $sTrimmedBillName = trim($oOrder->oxorder__oxbilllname->getRawValue());
+                if(!$sTrimmedBillName) {
+                    return FALSE;
+                }
+                else {
+                    $strx=array('#[^a-zA-Z0-9äöüß\040]#','# +#','#ä#','#ö#','#ü#','#ß#');
+                    $stry=array(' ',' ','ae','oe','ue','ss');
+                    $sTrimmedBillName=preg_replace($strx,$stry,$sTrimmedBillName);
+                    $sTrimmedBillName=trim($sTrimmedBillName);
+                    $sTrimmedBillName=strtolower($sTrimmedBillName);
+                }
+                $sFilename = $oOrder->oxorder__oxordernr->value . "_" . $sTrimmedBillName . ".xml";
+                $sFilename = $this->makeValidFileName($sFilename);
+                ob_start();
+                $oOrder->genXRechnung($sFilename, \OxidEsales\Eshop\Core\Registry::getConfig()->getRequestParameter("xmllanguage"), false);
+
+                $myConfig = Registry::getConfig();
+
+                echo file_get_contents($myConfig->getConfigParam('sShopDir')."/export/xml/".$sFilename);
+                $sXML = ob_get_contents();
+                ob_end_clean();
+                $oUtils->setHeader("Pragma: public");
+                $oUtils->setHeader("Cache-Control: must-revalidate, post-check=0, pre-check=0");
+                $oUtils->setHeader("Expires: 0");
+                $oUtils->setHeader("Content-type: application/xml");
+                $oUtils->setHeader("Content-Disposition: attachment; filename=" . $sFilename);
+                \OxidEsales\Eshop\Core\Registry::getUtils()->showMessageAndExit($sXML);
+            }
+        }
+    }
+}
diff --git a/src/Modules/Application/Model/Order.php b/src/Modules/Application/Model/Order.php
new file mode 100644
index 0000000..d345bc8
--- /dev/null
+++ b/src/Modules/Application/Model/Order.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace D3\XRechnung\Modules\Application\Model;
+
+use OxidEsales\Eshop\Core\Registry;
+use GuzzleHttp\Client;
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Exception\ClientException;
+
+class Order extends Order_parent
+{
+    public function genXRechnung(string $sFilename, int $iSelLang = 0, bool $sendContent = false)
+    {
+        $blIsNewOrder = 0;
+        // setting invoice number
+        if (!$this->oxorder__oxbillnr->value) {
+            $this->oxorder__oxbillnr->setValue($this->getNextBillNum());
+            $blIsNewOrder = 1;
+        }
+        // setting invoice date
+        if ($this->oxorder__oxbilldate->value == '0000-00-00') {
+            $this->oxorder__oxbilldate->setValue(date('Y-m-d', mktime(0, 0, 0, date('m'), date('d'), date('Y'))));
+            $blIsNewOrder = 1;
+        }
+
+        if ($blIsNewOrder) {
+            $this->save();
+        }
+
+        // adding info data
+        switch (\OxidEsales\Eshop\Core\Registry::getConfig()->getRequestParameter('exporttype')) {
+            case ('xml'):
+                return $this->getXRechnungXml($sFilename, $this->getId(), $iSelLang, $sendContent);
+                break;
+            default:
+                return $this->getXRechnungXml($sFilename, $this->getId(), $iSelLang, $sendContent);
+        }
+    }
+
+    /**
+     * @param $sOrderId
+     * @return true
+     */
+    protected function getXRechnungXml(string $sFilename, string $sOrderId, int $iSelLang,  bool $sendContent = false)
+    {
+        $oConfig = Registry::getConfig();
+        $oConfig->getConfigParam('d3xrechnung_PATH_GENERATOR');
+
+        $sPathDetails = $oConfig->getConfigParam('d3xrechnung_PATH_GENERATOR');
+        $sPathDetails .= 'orderid='.$sOrderId;
+        $sPathDetails .= '&filename='.$sFilename;
+        $sPathDetails .= '&iSelLang='.$iSelLang;
+        $sPathDetails .= '&sendContent='.$sendContent;
+        $sPathDetails .= '&combinexmlpdf=false';
+
+        $sUser = $oConfig->getConfigParam('d3xrechnung_HTACCESS_USER');
+        $sPassword = $oConfig->getConfigParam('d3xrechnung_HTACCESS_PASSWORD');
+
+        $client = new Client();
+        try {
+            /*
+            $response = $client->request('GET', $sPathDetails,
+                ['auth' => ['schmidt', 'tGiVLrBQik!8']]
+            );
+            */
+
+            $response = $client->request('GET', $sPathDetails,
+                ['auth' => [$sUser, $sPassword]]
+            );
+
+            if($sendContent) {
+                return $response->getBody(); // '{"id": 1420053, "name": "guzzle", ...}'
+            }
+            return true;
+        }
+        catch (ClientException $exception) {
+            $logger = Registry::getLogger();
+            $logger->error(Psr7\Message::toString($exception->getRequest()), [$exception]);
+            $logger->error(Psr7\Message::toString($exception->getResponse()), [$exception]);
+        }
+        return true;
+    }
+
+}
diff --git a/src/metadata.php b/src/metadata.php
new file mode 100644
index 0000000..b89401f
--- /dev/null
+++ b/src/metadata.php
@@ -0,0 +1,84 @@
+<?php
+
+/**
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
+declare(strict_types=1);
+
+use D3\DelUserExtension\Modules\Controller\Admin\userDeletingList;
+use D3\DelUserExtension\Modules\Controller\Admin\userDeletingMain;
+use D3\DelUserExtension\Modules\Core\Model\ListModel;
+
+$sMetadataVersion = '2.1';
+
+$sModuleId = 'd3xrechnung';
+$logo = '<img src="https://logos.oxidmodule.com/d3logo.svg" alt="(D3)" style="height:1em;width:1em">';
+
+/**
+ * Module information
+ */
+$aModule = [
+    'id'          => $sModuleId,
+    'title'       => $logo.' Anpassung: xRechnung / Zugferd',
+    'description' => [
+        'de' => '<hr>
+        Ruft den Generator auf, und gibt die erstellte XML-Datei an den Browser zum Download aus.<br>
+Der Pfad und Zugangsschutz zum Generator wird in der Konfiguration des Moduls hinterlegt.
+<hr>        
+        <strong>Pfad:</strong> https://xrechnung.DOMAIN.TLD/xrechnung.php?<br>
+        <strong>Validierung:</strong><a href="https://www.epoconsulting.com/erechnung-sap/xrechnung-validator" target="_blank">https://www.epoconsulting.com/erechnung-sap/xrechnung-validator</a><br>
+        <strong>Tickets:</strong>
+        <ul>
+        <li>xxx: Ticket</li>
+</ul>
+        ',
+        'en' => '',
+    ],
+    'thumbnail'   => 'picture.png',
+    'version'     => '1.0.0',
+    'author'      => $logo.' Data Development (Inh.: Thomas Dartsch)',
+    'email'       => 'support@shopmodule.com',
+    'url'         => 'https://www.oxidmodule.com/',
+    'extend'      => [
+        \OxidEsales\Eshop\Application\Controller\Admin\OrderOverview::class => D3\XRechnung\Modules\Application\Controller\Admin\OrderOverview::class,
+        \OxidEsales\Eshop\Application\Model\Order::class => \D3\XRechnung\Modules\Application\Model\Order::class
+    ],
+    'templates'   => [
+    ],
+    'settings'    => [
+        [
+            'group' => 'd3xrechnung',
+            'name'  => 'd3xrechnung_PATH_GENERATOR',
+            'type'  => 'str',
+            'value' => 'https://xrechnung.DOMAIN.TLD/xrechnung.php?'
+        ],
+        [
+            'group' => 'd3xrechnung',
+            'name'  => 'd3xrechnung_HTACCESS_USER',
+            'type'  => 'str',
+            'value' => ''
+        ],
+        [
+            'group' => 'd3xrechnung',
+            'name'  => 'd3xrechnung_HTACCESS_PASSWORD',
+            'type'  => 'str',
+            'value' => ''
+        ],
+    ],
+    'blocks'      => array(
+        array(
+            'template' => 'order_overview.tpl',
+            'block'    => 'admin_order_overview_export',
+            'file'     => 'Application/views/admin/blocks/order_overview.tpl',
+            'position' => 100
+        ),
+    ),
+];
diff --git a/src/out/img/xrechnung.png b/src/out/img/xrechnung.png
new file mode 100644
index 0000000..3fe6b1d
Binary files /dev/null and b/src/out/img/xrechnung.png differ
diff --git a/src/picture.png b/src/picture.png
new file mode 100644
index 0000000..d817ed4
Binary files /dev/null and b/src/picture.png differ