by Nadav Kavalerchik.
Two main options we use:
(1) Changed the CSS of the headers to: white-space:normal; , so the the header's text is word wrapped. which condenses the table columns (a lot)
(2) Chrome users use the SHIFT+ Mouse Scroller to scroll horizontally. And Firefox users CLICK the mouse wheel and scroll horizontally.
(3) As mention above, hide un-used columns
Hope it helps