Where can I write a temp file from ASP.NET?
<p>I have an 'access denied' problem on an ASP.NET web application, where the user uploads an Excel file and I try and write it to a folder.  I don't have access to the host except FTP, so I can't set permissions.  I thought that ASP.NET would be able to write to a folder that is under the web app root, but it isn't so.</p>

<p>Is there anywhere I can write the file to that doesn't require me to set permissions?  </p>
