title: Upload a large Excel file and process asynchronously
body: <p>I want to upload a large file of tracking numbers and process them into our ordering system.</p>
  
  <p>I used to use </p>
  
  <pre><code> Server.ScriptTimeout = 3000
  </code></pre>
  
  <p>It worked until we upgraded our servers and now it crashes. </p>
  
  <p>I'm Getting </p>
  
  <pre><code> This webpage is not available
   The connection to www.YourSite.com was interrupted.
  </code></pre>
  
  <p>I could see the .csv file has been uploaded, but many tracking numbers do not get processed.</p>
  
  <p>I'm thinking of maybe switching to a asynchronous update. But I cannot find any good source for it.</p>
  
  <p>If you have any good ideas, please let me know.
  Thanks</p>