How can I display an Excel template when the webpage is loaded in PHP?

To display an Excel template when a webpage is loaded in PHP, you can use the PHPExcel library to read the Excel file and output it as HTML. This way, the Excel template will be displayed as a table on the webpage.

<?php
require 'PHPExcel/Classes/PHPExcel.php';

// Load the Excel template file
$objPHPExcel = PHPExcel_IOFactory::load('template.xlsx');

// Output the Excel data as HTML
echo '<table border="1">';
foreach ($objPHPExcel->getActiveSheet()->getRowIterator() as $row) {
    echo '<tr>';
    $cellIterator = $row->getCellIterator();
    $cellIterator->setIterateOnlyExistingCells(false);
    foreach ($cellIterator as $cell) {
        echo '<td>' . $cell->getValue() . '</td>';
    }
    echo '</tr>';
}
echo '</table>';
?>