title: Using NServiceBus how can I process multiple messages as a batch?
body: <p>We currently have an process that involves sending a third-party an xml file containing changes that have occurred within our system.</p>
  
  <p>We are moving to use NServiceBus and the changes are modelled as individual commands sent to an endpoint.</p>
  
  <p>We do not want to send these changes as individual files; instead we want to batch receive a number of commands, concatenating this information into a single file.</p>
  
  <p>How might one go about batching multiple commands into a single export file? </p>