Convert SSL Certificate to PFX format

I am looking for someone to convert an SSL certificate to a .pfx file format. I already have the SSL certificate and have access to the private key, but I'm not sure what the current format of the SSL certificate is. The person hired would need to review the SSL certificate and figure out what format it is currently in before converting it into a .pfx file format. The finished product needs to be delivered compliant with industry standards and ensures that the certificate remains secure. Any other relative tasks that need to be completed during the conversion should also be handled as efficiently as possible. I am hoping to find someone with experience in this area who can complete the task quickly and effectively.