From Enin you will receive a password protected file with your basic and auth credentials, a password to the file is sent separately to your phone. When you have received both of these you can go ahead and use for instance 7-zip to unzip a password protected file. With this tool you can extract the file by right clicking the file and left click 7-zip->Open archive.
Now the 7-zip dialog should open and if you double click the file shown in the window, you will be given the option to open it if you provide the password. This password you should find on your phone, if not reach out to us tech@enin.ai.