WordPress Tabular Plugin is a very easy to Table Builder Plugin for WordPress. WordPress Tabular Plugin has Complete GUI for creating and sorting rows and columns without writing any html. Also WordPress Tabular Plugin packed with many table templates, where you can select any template to show a table at front-end. As well as regular short-code, It will provide you js embed and you can use the js code even in another site to embed the table. Tables are exportable in xml, html and csv format.
Plugin info page: http://wordpress.org/extend/plugins/wp-tabular/