Coverting a .BAK file into a .SQL for use in XAMPP phpmyadmin

I have a .bak file and I need to import it into a database (need a .sql file) using xampp's phpmyadmin (local development), is there a way to do this? I have looked for a while now and I have found solutions but it was for Windows SQL server and not for xampp.

Note: I got the file from a client which means I don't have the access to their server and I can't do a database export.

Thanks in advanced!