diff --git a/testing/cellReferenceTest.php b/testing/cellReferenceTest.php
deleted file mode 100644
index c8d1659c..00000000
--- a/testing/cellReferenceTest.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
-
-error_reporting(E_ALL);
-set_time_limit(0);
-
-date_default_timezone_set('UTC');
-
-// Adjust the path as required to reference the PHPSpreadsheet Bootstrap file
-require_once __DIR__ . '/../vendor/autoload.php';
-
-$cellRange1 = Coordinate::extractAllCellReferencesInRange('D3');
-var_dump($cellRange1);
-$cellRange2 = Coordinate::extractAllCellReferencesInRange('D3:E4');
-var_dump($cellRange2);
-$cellRange3 = Coordinate::extractAllCellReferencesInRange('Sheet1!D3');
-var_dump($cellRange3);
-$cellRange4 = Coordinate::extractAllCellReferencesInRange('Sheet1!D3:E4');
-var_dump($cellRange4);
-
-$cellRange11 = Coordinate::extractAllCellReferencesInRange('D3:E4 D4:F6');
-var_dump($cellRange11);
-$cellRange12 = Coordinate::extractAllCellReferencesInRange('D3:E4,D4:F6');
-var_dump($cellRange12);
-
-$cellRange5 = Coordinate::extractAllCellReferencesInRange('Sheet1!D3:Sheet2!E4');
-var_dump($cellRange5);