Self-signed SSL certificate in Laragon

I developed a web app in Laravel on the Laragon Apache. But this app is only available within the oraganization, and need to be exposed to the rest. Our Miscrosft team (as the system is running on a Microsoft VM) send me a 3 .crt files (Intermediate, Root and ServerCertificate). I am not using the IIS on the Microsoft VM.

How do I install the certificates that the web app can be exposed (https) to the world. SSL is enabled on Laragon.

Thanks

via Chebli Mohamed