Yes. Just create a form and you can set it to email you when someone registers and also save it as .csv. I do this very thing, then copy the ..csv periodically off the server and import it into Excel. There are probably other ways of doing it too, but I don't get much traffic so this way is easy for me.
| I am collecting addresses for my enewsletter from a form on my home page. Can I save these directly into Excel, and if so would you suggest ..cvs or .txt? Tab delimted, etc...