Convert .pem to .crt and .key code example

Example 1: convert crt to pem

openssl x509 -inform DER -in yourdownloaded.crt -out outcert.pem -text

Example 2: convert pem to crt

openssl x509 -outform der -in your-cert.pem -out your-cert.crt

Example 3: create cert from pem

openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt