Sometimes when you want to fully analyze the results from your survey by seeing how respondents who answered two or more specific questions compare. Using cross-tabs you will be able to rapidly analyze the joint distribution of two or more variables. You can apply filters to your crosstabs as well in order to get more finely tuned data. Once your crosstabs are formulated, you will be able to export them into your favorite spreadsheet program for further modifications/tweaking.
Watch this video tutorial about creating cross-tabulations: