When your Excel table spans more than one printed page, you can repeat the rows or columns (that serve as headings) on the subsequent printed pages. On this table
I’ve added some manual page breaks to simulate a large table. To show the months across the top of every page and the regions across the left of every page, use the Sheet tab under File > Page Setup.
Page 4 of this print out looks like this without any rows or columns repeating.
And the same page looks like this after the changes to File > Page Setup > Sheet