They look like a typo, but they’re the reason your table formulas don’t break.
Excel 2007’s new table feature eliminates the need to copy formulas; once you define a data range as a table, Excel will do it for you! Tables are new to Excel 2007 ...
When you need to see the last value in an Excel Table or data range, these formulas will get the job done. This walk-through details the necessary formulas and some VBA code that performs the same ...