Econometrics & Excel?

[abrapollock.livejournal.com]

Hello people,

I am thinking of trying to take a course in basic econometrics to shore up my professional qualifications for a field I'm interested in.  I'd also like to improve my Excel skills from intermediate to advanced.

Can anyone suggest a location in the Boston area where I could take these type of courses?  I've already checked the Harvard Extension School, and they don't seem to offer them.

I could just take the the courses at local universities, but I'm not sure if universities allow random people who aren't enrolled to take their courses... right?

Thanks for any advice you can provide--

Abra