: You typically download these from your provider and import them into software like OpenVPN or Shrew Soft VPN Client.
If you are looking for an app called , it is a free, unlimited VPN service specifically for Android devices. Download VPN txt
A "VPN txt" file usually refers to a configuration file that contains the necessary settings (server addresses, ports, protocols, and encryption details) for a VPN client to establish a secure tunnel. : You typically download these from your provider