Merging two tables

I would like to combine two tables. They have one common column(we could maybe assume common column is the first one from the left in the table), and same amount of rows. This is relatively fast to do manually, but doing this hundreds of times would make some macro handy.

I have attached two excel files that includes examples. However the row and column number might change. I understand some VBA but can't write much code from empty table.

I have thought two possibility
1. Creating a macro that sorts tables by the common column and attach the second table without first column to the first table.

or 2.Using vlookup or lookup functions.

Any ideas for the solution? If you can provide any help for the code I would be delighted!

I also found a few commercial programs, but they are not so handy that I would pay 30 dollars (Are there any free?).

Thank you in advance for any tips!

btw. I am using -excel 07