VPN configuration files and certificate information needs to be downloaded from ExpressVPN.
Navigate to https://www.expressvpn.com.
Click on the My Account Menu option.
Sign into your ExpressVPN account using your username and password.
Within Set up your devices, click on the … More option.
Click on the Manual Configuration option.
Select the OpenVPN tab on the right.
You will first see your Username and Password. Make a note of these, as they will be needed later.
The OpenVPN tab will also display a list of OpenVPN configuration locations.
Download one or more configuration files for the locations you want to use.
For example France - Paris - 1 is selected here.
The OpenVPN tab will also display the option of downloading a zip file containing Certificates and Keys.
Click on the link to download the zip file.
Now that you have the configuration files, return to Use ExpressVPN and do the next step: Configure pfSense to use the ExpressVPN configuration files.