title: Why am I getting mime-type of .csv file as "application/octet-stream"?
body: <p>I'm working on a PHP application that must import an excel file into MySQL. So I need to convert the excel file to .csv format. But when I want to get its type using <code>$_FILE['something']['type']</code> , I get <code>application/octet-stream</code> as its mime-type;<br>
  I think there is something wrong here. Because I gathered the list below as a .csv file mime-type:  </p>
  
  <pre><code>text/comma-separated-values,  
  text/csv,  
  application/csv, 
  application/excel, 
  application/vnd.ms-excel, 
  application/vnd.msexcel
  </code></pre>
  
  <p>What's the matter ?</p>