PHP xls, xlsx, ppt, pptx headers

Question

Here is my code where I am trying to send a correct header depedning on a type of a document. I figured out the headers for pdf, doc and docx but I still need to know correct header for Excel and Powerpoint files.

Any help appreciated.

    $document = urldecode($_GET['document']);     $extension = end(explode('.', $document));     $mimeType = '';     switch ($extension) {         case 'pdf':             $mimeType = 'pdf';             break;         case 'doc':             $mimeType = 'msword';             break;         case 'docx':             $mimeType = 'msword';             break;         case 'xls':             $mimeType = '';             break;         case 'xlsx':             $mimeType = '';             break;         case 'ppt':             $mimeType = '';             break;         case 'pptx':             $mimeType = '';             break;     }            header('Content-type: application/' . $mimeType); 

Answer 1

.xls

application/vnd.ms-excel

.xlsx

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

.ppt

application/vnd.ms-powerpoint

.pptx

application/vnd.openxmlformats-officedocument.presentationml.presentation

And one of those you have listed is wrong:

.docx

application/vnd.openxmlformats-officedocument.wordprocessingml.document