I have two Excel files, in the first this table:
Date        Water  Eggs Potato
01/09/15    10     52   642
in second:
Date        Eggs   Potato Water Banana
01/09/15    50     300    15    10
In a result file or table I need:
Date        Water  Eggs Potato Banana
01/09/15    25     102  942    10
You can see that I have summed from first and second table. In first table, I don't have column Banana, but in result table its column must be inserted.  
How to do this, might the problem be solved by any functions or do I need to use VBA?
 
     
     
    

