and apparently despite .pem not being in the file types, it imported just fine

Hey Matt! Glad it worked. Infisical exports as .pem or PKCS12, and .pem is basically the same encoding as .cer/.crt so Windows has no issue importing it. If you ever need the .crt extension specifically, just rename the file. Same file, different name

good to know. I could only export the Root CA as .pem though, I didn't see an option for PKCS12, which is probably ok I guess, since for root it's just the public part