Date::stringToExcel('1900-02-01'), '0.2.A' => 0, '0.3.A' => null, '0.4.A' => 1.2, '0.5.A' => '', '0.6.A' => 2.4, '0.7.A' => null, '0.8.A' => '', '0.9.A' => 3.6, '0.10.A' => null, '0.11.A' => '', '0.12.A' => 4.8, '0.13.A' => 'Not a numeric', '0.14.A' => 6 ], ], [ 14, [ // No index indicates arguments passed as literals rather than cell values // In this case, nuls are counted as well as numbers Date::stringToExcel('1900-02-01'), 0, null, 1.2, '', 2.4, null, '', 3.6, null, '', 4.8, 'Not a numeric', 6 ], ], ];