hello,

1. I'm afraid there isn't... an "export" feature should be customly build to allow this.

2. well, first of, track only the things you really want to. don't set all the options (in the extension plugins) to "yes" just because it's the default option. be sure to turn off everything you don't need to avoid collecting useless data for you. besides of this, if your db really gets big, then what I suggest is what we do: just clean up "old" data in the DB from time to time (for instance, if you're only going to view info for lets say the 3 last monhts, then go to your MySQL admin every X months and erase data older than 3 monhts. do you know what I mean?

But: do you have many visits? I mean, you should "worry" about this only if you run a really busy site..! and, in taht case, the periodical "clean up" process should be more than enough

but in any case, the db table can get pretty big without you having to worry. 300k or 400k are really "not that much" entries