How to merge CSV files

There are two major ways to merge CSV: Stacking columns vertically (one on top of the other) or Joining rows horizontally (side-by-side).

Stacking

For example, stacking is where we want to take these two tables in CSV files:

And merge matching columns one on top of the other to get:

Find out the easy way to stack CSV files.

Joining

For example, joining is where we want to take these two tables in CSV files:

And merge the rows side-by-side using a common (‘key’) column to get:

Find out the easy way to join CSV files.