What Curtis said, plus for Nero try Audacity.
Nothing will open Publisher files BTW. You can use the "Package for service provider" it's called something like that to export any Publisher files then try to open or recreate in Pages.
What version of Numbers do you have? If it's v 3.x.x I have one I emailed to you at carolina.rr email address that's in your Profile. If it's v 2.x.x I have that too.
Doing a google search I found these two also.
There is a Numbers spreadsheet app
. The one for blood sugar is 99˘. This one is free
Congrats BTW. Welcome to 21st century computing.