I think what you are looking for is a WordPress plugin called “TinyMCE Advanced”. http://wordpress.org/extend/plugins/tinymce-advanced/ The builtin WordPress wysiwyg editor is called TinyMCE. TinyMCE Advanced is an advanced wysiwyg editor which will take care of the known issue of “whitespace” being automatically stripped by the default WordPress wysiwyg editor. There are also many other AWESOME editing features and additional toolbar buttons in this plugin so you should have it anyway. Table formatting can be a pain in the rear when using the WordPress default TinyMCE editor. TinyMCE Advanced makes creating and formatting tables rows, columns and cells fast and very smooth. Once you install the TinyMCE Advanced plugin you need to configure it in the Dashboard. This is very easy. You are just going to drag and drop your new toolbar buttons to create a new advanced toolbar. No coding is required – totally drag and drop. Be sure to check the checkbox for allowing whitespace NOT to be automatically stripped from your posts. Good luck! 😉