Are there any specific PHP classes available for converting XLS and DOC files to HTML?

To convert XLS and DOC files to HTML in PHP, you can use the PHPExcel library for XLS files and PHPWord library for DOC files. These libraries provide classes and methods to read XLS and DOC files and generate HTML output.

// Include the PHPExcel library
require_once 'PHPExcel/PHPExcel.php';

// Load the XLS file
$xlsFile = 'example.xls';
$objPHPExcel = PHPExcel_IOFactory::load($xlsFile);

// Save the XLS file as HTML
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'HTML');
$objWriter->save('example.html');
```

```php
// Include the PHPWord library
require_once 'PHPWord/PHPWord.php';

// Load the DOC file
$docFile = 'example.docx';
$phpWord = new PHPWord();
$phpWord->loadTemplate($docFile);

// Save the DOC file as HTML
$htmlWriter = PHPWord_IOFactory::createWriter($phpWord, 'HTML');
$htmlWriter->save('example.html');