diff --git a/CHANGELOG.md b/CHANGELOG.md
index f457da7..599e4fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,10 @@
 # Changelog
+## 1.2.16 (2022-08-06)
+* added modTemplate( $path, $custom_xml ) for customize generated XML
+```php
+$xlsx->modTemplate('xl/worksheets/sheet1.xml', '<autoFilter ref="A1:A5"/>');
+```
+
 ## 1.2.15 (2022-07-05)
 * added wrap words in long strings `<wraptext>long long line</wraptext>`
 
diff --git a/README.md b/README.md
index 0af088b..ce83b04 100644
--- a/README.md
+++ b/README.md
@@ -104,6 +104,10 @@ $xlsx->addSheet( $books, 'Catalog 2021' );
 $xlsx->addSheet( $books2, 'Stephen King catalog');
 $xlsx->downloadAs('books_2021.xlsx');
 exit();
+
+// Customize XML
+$xlsx->modTemplate('xl/worksheets/sheet1.xml', '<autoFilter ref="A1:A5"/>');
+
 ```
 ### JS array to Excel (AJAX)
 ```php
diff --git a/src/SimpleXLSXGen.php b/src/SimpleXLSXGen.php
index ebc54cf..f7154f2 100644
--- a/src/SimpleXLSXGen.php
+++ b/src/SimpleXLSXGen.php
@@ -768,6 +768,11 @@ class SimpleXLSXGen {
         $this->defaultFontSize = $size;
         return $this;
     }
+    public function modTemplate( $path, $custom_xml ) {
+        $t = $this->template[ $path ];
+        $p = strrpos($t,'</');
+        return $this->template[ $path ] = substr($t, 0, $p) . $custom_xml . substr($t,$p);
+    }
     public function mergeCells( $range ) {
         $this->sheets[$this->curSheet]['mergecells'][] = $range;
         return $this;