I assume you mean columns with values? The closest I have been able to do is to wrap the section in the [*code]code[*/code] tags (remove * of course) and use underscores to space the values out. Mutiple spaces will be truncated. You may need to play around and preview a lot before you get it looking how you want it.
Here [webmasterworld.com] is an example of a table I fixed up vs one I didn't. (will do so soon ... )