title: OData Client Code Generator for Authenticated Feed (Excel Service)
body: <p>How does one generate an OData Client Proxy for an authenticated service? In my case, I'm connecting to the Excel Service Restful OData feed for a spreadsheet in O365/SharePoint online. </p>
  
  <p>I can access the metadata and feed in my browser after authenticating, but I'm hoping to use the OData Client Code Generator installed in VS2015 (C#). There is no option/prompt for credentials, just a 403 error. I've tried logging into VS with the same office account, and also opening up the feed (authenticated) in the browser in VS but no luck. </p>
  
  <p>I am able to save the metadata xml to my project. I was wondering if perhaps I can get access to the T4 template file and reference the metadata in file instead of through the URI?</p>
  
  <p>Any suggestions?</p>