Need input on missing soap information derived from a WSDL file

Question

I am trying to import a WSDL file into Postman for development. It has been a very long time since I have worked with SOAP files. I seem to remember that I could get all the documentation I needed for the app from within the WSDL file. I have the file but every time I import it gives me the following error:

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <error>The element or type could not be found executeSearchBulk</error>
  </soap:Body>
</soap:Envelope>

What am I missing?