Namecheap SSL Certificate installation question

Im looking to use my namecheap wildcard certificate for bitwarden. Im having a tough time with the format that bitwarden/nginx is expecting.

From namecheap I got the following:

I know this isnt exactly a bitwarden issue, but im a little in the dark as to how to get those files into the format that bitwarden/nginx needs. Any help or guides would be much appreciated.

Have a look at these: