diff --git a/src/ColumnFormatter/CurrencyFormatter.php b/src/ColumnFormatter/CurrencyFormatter.php
index 8471f43..9bcc713 100644
--- a/src/ColumnFormatter/CurrencyFormatter.php
+++ b/src/ColumnFormatter/CurrencyFormatter.php
@@ -1,5 +1,11 @@
 <?php
 
+/**
+ * Copyright © Fastbolt Schraubengroßhandels GmbH.
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Fastbolt\ExcelWriter\ColumnFormatter;
 
 use Fastbolt\ExcelWriter\ColumnSetting;
@@ -47,4 +53,4 @@ public function getFormatCode(): string
             default => throw new OutOfRangeException("Currency  " . $this->currency . " is not supported"),
         };
     }
-}
\ No newline at end of file
+}
diff --git a/src/ColumnSetting.php b/src/ColumnSetting.php
index baa77c7..f5a1779 100644
--- a/src/ColumnSetting.php
+++ b/src/ColumnSetting.php
@@ -15,7 +15,6 @@
 use Fastbolt\ExcelWriter\ColumnFormatter\IntegerFormatter;
 use Fastbolt\ExcelWriter\ColumnFormatter\PercentageFormatter;
 use Fastbolt\ExcelWriter\ColumnFormatter\StringFormatter;
-use PhpOffice\PhpSpreadsheet\Calculation\DateTimeExcel\Current;
 
 class ColumnSetting
 {