title: how can I upload and parse an Excel file in Rails?
body: <p>I want to be able to upload an Excel file that contains contact information.  I then went to be able to parse it and create records for my Contact model.</p>
  
  <p>My application is a Rails application.</p>
  
  <p>I am using the paperclip gem on heroku, I've been able to parse vim cards into the Contact model, and am looking for something similar, but will go through all lines of the Excel file.</p>
  
  <p>Gems that simplify the task and sample code to parse would be helpful!</p>