Using VPN Unlimited through OpenVPN on Windows

My VPN provider, VPN Unlimited, gives me an OpenVPN configuration file and a username and a login. Is there a way to use this on Windows? If there is, is there a way to route certain applications through the VPN and certain applications through regular internet? Thanks!

https://whstatic.1and1.com/help/CloudServer/EN-US/d851509.html