I really like the CharacterFolio app from Dark Theatre LLC. It fills in a lot on it's own, like BAB and Init, and almost everything is in a drop down menu form. It has customizable equipment slots. Actually, everything is customizable, which is a good thing, since it has it's own issues like not recognizing that you have certain feats. As long as you know what should go in, say, AC, you can enter it.
I don't know if it's exportable or not. I would just fill out an old fashioned paper sheet for your DM and update it every time you level. The app is....$7, i think. Not a huge investment. I use it in the game I play in, my cousin uses it in the game I run and the other that we play in together. Another player in my campaign uses it, and yet another player in the other game uses it as well. Also....character portrait. Always nice!