With openvpn you "run" the .conf file, and this file refers to all the other files you need.

So open it up in notes and check where it expects the crt, key, ca.crt, secrets etc to be. If the conf doesn't refer to any of the files provided by hotsplots, then they may not be required.

If the .conf file doesn't have the same path /etc/openvpn for each of the files, you can just update the path to /etc/openvpn. They may have issued a .conf file that is more geared toward Windows users, so change the paths if so.

The .conf file isn't as hard to read as you might first think.