title: AWS SDK - getObject convert returned file from ASCII buffer to json/csv
body: <p>I'm using the aws-sdk for Nodejs, and I'm getting an object back from AWS bucket in the form of a buffer, like so:
  [31, 139, 8, 0, 0, 0 ....]</p>
  
  <p>The original object located in the bucket is in csv format, can I convert the buffer to a usable format like csv or json?</p>