What are the different file formats client certificates can be stored in, and which ones are typically compatible with Postman?

Client certificates are commonly stored in .p12, .pfx, .pem, .crt, and .cer formats. Postman typically supports .p12 and .pfx formats, which are container formats that include both the certificate and the private key. While .pem, .crt, and .cer files can contain certificates, you'll often need the corresponding private key separately, which might require converting them to .p12 or .pfx.