Excel Upload via File Upload Library

[eluser]Josh Kendall[/eluser]
I'm trying to upload a Excel file (.xls format) to my server through a form on my CI based web site. I keep getting a "The filetype you are attempting to upload is not allowed" error. I'm not sure why I'm getting this as I have xls as the only allowed_types and I even modified mimes.php to reflect the octet-stream issue that I found when I was searching for this issue.

Controller Function:

Code:

function upload(){

    $config['upload_path'] = $_SERVER['DOCUMENT_ROOT'].'/uploads/excel/';
    $config['allowed_types'] = 'xls';
    $config['max_size']    = '10000';
    $this->load->library('upload', $config);
    if(!$this->upload->do_upload()){
        echo $this->upload->display_errors();
        preprint($this->upload->data());
        preprint($_FILES);
    } else {
        redirect('../../../excel/import/users::'.$_FILES['userfile']['name']);
        exit();
    }
}

And here is the line in Mimes.php

Code:

'xls'    =>    array('application/vnd.ms-excel', 'application/octet-stream', 'application/msexcel', 'application/excel'),

and still it doesn't work. Does anyone have any suggestions?