Importar datos de Excel a PHP utilizando PHPExcel

1. Descargar la librería PHPExcel.
2. Luego crear un archivo (.php).
3. Copiar el código y listo :).

<?php 
require_once 'Classes/PHPExcel/IOFactory.php';
$objPHPExcel = PHPExcel_IOFactory::load("excel.xlsx");
foreach ($objPHPExcel->getWorksheetIterator() as $worksheet) {
$worksheetTitle     = $worksheet->getTitle();
$highestRow         = $worksheet->getHighestRow(); // e.g. 10
$highestColumn      = $worksheet->getHighestColumn(); // e.g 'F'
$highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn);
$nrColumns = ord($highestColumn) - 64;
echo "<br>The worksheet ".$worksheetTitle." has ";
echo $nrColumns . ' columns (A-' . $highestColumn . ') ';
echo ' and ' . $highestRow . ' row.';
echo '<br>Data: <table border="1"><tr>';
for ($row = 1; $row <= $highestRow; ++ $row) {
echo '<tr>';
for ($col = 0; $col < $highestColumnIndex; ++ $col) {
$cell = $worksheet->getCellByColumnAndRow($col, $row);
$val = $cell->getValue();
$dataType = PHPExcel_Cell_DataType::dataTypeForValue($val);
echo '<td>' . $val . '<br>(Typ ' . $dataType . ')</td>';
}
echo '</tr>';
}
echo '</table>';
}