Alter Version

vendor/PhpSpreadsheet/Writer/Ods/Thumbnails.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Thumbnails extends WriterPart
+{
+    /**
+     * Write Thumbnails/thumbnail.png to PNG format.
+     *
+     * @param Spreadsheet $spreadsheet
+     *
+     * @return string XML Output
+     */
+    public function writeThumbnail(?Spreadsheet $spreadsheet = null)
+    {
+        return '';
+    }
+}