So I needed to make a column span all remaining columns in the row but I didn't know what number to set it to. Turns out you can set the number to something high like 100 and it will span up to that many columns.
This works in all browsers but does not work if used with
<td colspan=100>This cell spans up to 100 columns<td>
Related External Links: - [Stack Overflow - colspan-all-columns](http://stackoverflow.com/questions/398734/colspan-all-columns)