Suggestions for good file viewer

[phkhgh]

I'm looking for a really good "file viewer" utility (or two). One that allows you to open just about any type file, and often read at least some info inside - just to get a sense of what's in it, if nothing else.

I've use FileAlyzer by SaferNetworking (Spybot). It's OK, I guess, but don't have much to compare it to.

Thanks.