Spout is a PHP library to read and write spreadsheet files (CSV, XLSX and ODS), in a fast and scalable way.

1. Code:

<?php
use Box\Spout\Reader\Common\Creator\ReaderFactory;
use Box\Spout\Common\Type;
require_once 'spout/src/Spout/Reader/Common/Creator/ReaderFactory.php';
require_once 'spout/src/Spout/Autoloader/autoload.php';
?>
<p>Choose File:</p>
 <form action = "" method = "POST" enctype = "multipart/form-data">
         <input type = "file" name = "filename" />
         <input type = "submit"/>            
  </form>      

<?php
$fileUploadData = $_FILES['filename'];
if (!empty($_FILES['filename']['name'])) {
    $pathinfo = pathinfo($_FILES["filename"]["name"]);
   if ($pathinfo['extension'] == 'ods' && $_FILES['filename']['size'] > 0 ) {
        #Read excel file by using ReadFactory object.
        $reader=ReaderFactory::createFromType(Type::ODS);
        $reader->open($fileUploadData['tmp_name']);
        $count = 1;
        $rows = array();
        foreach ($reader->getSheetIterator() as $sheet) {
            foreach ($sheet->getRowIterator() as $row) {
				$rowAsArray = $row->toArray();
                if ($count > 0) {
					$fileUploadData['importData'][] = $rowAsArray;
               }
                $count++;
            }
         echo "successfully uploaded!";
        }
        $reader->close();
    } else {
        echo "PLEASE SELECT A VALID EXCEL FILE";
    }
} else {
    echo "UPLOAD AN EXCEL FILE";
}

?>
<p><?php echo($_FILES['filename']['name'])  ?></p>
<table >
<?php foreach($fileUploadData['importData'] as $rows){?>
<tr>
		<?php	foreach($rows as $value){
	?>

<td><?php echo($value); ?></td>
		<?php } ?>
</tr>
<?php } ?>
</table>
<style>
table, td, th {
  border: 1px solid;
}

table {
  width: 100%;
  border-collapse: collapse;
}
</style>

2. Example:

Input: example_upload_using_spout.ods

ID	Name	        Description
1	Spout      	Spout is a PHP library to read and write spreadsheet files (CSV, XLSX and ODS)
2	ReaderFactory   This creates an instance of the appropriate reader, given the type of the file to be read

Output:

ID	Name	Description
1	Spout	Spout is a PHP library to read and write spreadsheet files (CSV, XLSX and ODS)
2	ReaderFactory	This creates an instance of the appropriate reader, given the type of the file to be read