how to read an RSA key in .asc format...

[Robert Locke]

Hi,   This is probably really simple, but I'm struggling to figure this out.   I have an RSA public key file exported from PGP v8.0 (ie, foo.asc).  How can I get openssl to read this file?  Do I need to convert it to PEM format?  How do I do that?   Confusedly yours...