title: How do I open .bin/.idx database files?
body: <p>I'm attempting to open some database files used by a legacy application that I know almost nothing about. The databases appear to be in file pairs of a <em>bin</em> and <em>idx</em>, for example: <strong><em>Cust.bin</em></strong> and <strong><em>Cust.idx</em></strong>.</p>
  
  <p>I have never seen this type of database before and wasn't able to find anything useful through Google. I also don't know what language or tool the developer used for this app, but it seems that he used the default generic icon for his published executable. This is it:</p>
  
  <p><img src="https://i.stack.imgur.com/sUli8.png" alt="Programs Icon"></p>
  
  <p>Can anyone tell me anything about this application, what type of database it uses and how I might open the database myself?</p>