UserKeyAndCertFile - Data file containing user private keys and certificates to be archived. This can be any of the following: ...

UserKeyAndCertFile -- Data file containing user private keys and
certificates to be archived.  This can be any of the following:
        Exchange Key Management Server (KMS) export file
        PFX file
        Outlook key export (EPF) file
CertId -- KMS export file decryption certificate match token.  See -store.
Use %1 to import certificates not issued by the CA.