How can the use of libraries like Spreadsheet_Excel_Writer from PEAR help in handling Excel files in PHP?

Using libraries like Spreadsheet_Excel_Writer from PEAR can help in handling Excel files in PHP by providing a simple and efficient way to create and manipulate Excel files programmatically. This library allows you to easily generate Excel files with various formatting options, such as fonts, colors, borders, and formulas. It simplifies the process of working with Excel files in PHP, making it easier to generate reports, export data, and automate tasks involving Excel.

<?php
require_once 'Spreadsheet/Excel/Writer.php';

// Create a new Excel workbook
$workbook = new Spreadsheet_Excel_Writer();

// Add a worksheet to the workbook
$worksheet = $workbook->addWorksheet('Sheet1');

// Write data to the worksheet
$worksheet->write(0, 0, 'Hello');
$worksheet->write(0, 1, 'World');

// Save the workbook as an Excel file
$workbook->send('example.xls');
$workbook->close();
?>