WordPress is a blogging platform with many, many different possible configurations and site designs. Excel is a spreadsheet app with many, many variations of its own. It's good that you have achieved success in doing what you were doing before, but that fact gives us very little insight into to what you were actually doing, among the countless possible variations.
From your second post it appears you are posting a roster of some kind, so there is a little more to go on, though we are still left guessing as to what you want that roster to look like on your site.
In any case if you are simply trying to post a simple table into your site have you tried just copy-pasting the data in from Numbers?
If you give more details it would also be possible to give you a short script that converts the Numbers table to an html table that a browser can display when it visits your WordPress site.
SG