diff --git a/src/SimpleXLSXGen.php b/src/SimpleXLSXGen.php
index 2ee9e0f..57b097a 100644
--- a/src/SimpleXLSXGen.php
+++ b/src/SimpleXLSXGen.php
@@ -1072,6 +1072,11 @@ class SimpleXLSXGen
         $this->application = $application;
         return $this;
     }
+    public function setLastModifiedBy($lastModifiedBy)
+    {
+        $this->lastModifiedBy = $lastModifiedBy;
+        return $this;
+    }
 
     public function setLastModifiedBy($lastModifiedBy)
     {