Blog settings have the option to control all the archive page option. In Blog Settings you will see Blog Type from here you can determine which style of the archive you want. In here you will see two kinds of option. One is List and another one is Grid. In Grid, you can choose how many columns you want and do you want any sidebar or not.

And in below you will see excerpt option. In there you can set how many words you want to display in archive page.