title: How do I read an unknown file type?
body: <p>I have a file. It's not a text file. What is the logical process and tests one would use to read the file to see what it contains? File structure, vendor, data are all unknown. </p>
  
  <p>Here is a sample of the data:</p>
  
  <p><a href="https://i.stack.imgur.com/8Q3iP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8Q3iP.png" alt="enter image description here"></a></p>