You can sort the rows of a table based on the contents of a single column. You can also perform a more complicated table sort based on the contents of two columns.
You cannot sort tables that contain colspan or rowspan attributes—that is, tables that contain merged cells.
When the contents of a column are numbers, select Numerically. An alphabetic sort applied to a list of one- and two-digit numbers results in the numbers being sorted as if they were words (resulting in ordering such as 1, 10, 2, 20, 3, 30) rather than being sorted as numbers (resulting in ordering such as 1, 2, 3, 10, 20, 30).