Hi -
It's very easy to create columns in Word. There is a button on the standard toolbar (the one right beneath File, Edit, etc.) that looks something like this:
___ ___
___ ___
___ ___
This is the "columns" button - it allows you to set up your page as one or more columns. If you only want one column on the page, there's a second way that's even easier.
On the Ruler above the document (if it's not showing, just go to the View menu and select "Ruler"), click and drag the margins of your document so that you have as narrow a column as you like (you can also do this in the "Page Setup" window under the file menu). Of course, your example has only one or two letters on some lines - this will require you to press Enter to start the new line no matter how narrow your column is.
In Excel, the idea of a column is more normal. If you want to create something that looks like your example, you can:
1) Type one word in each cell in the column, or
2) If you want the entire column in one cell, right-click that cell and choose "Format cells." On the "Alignment" Tab, check the box next to "wrap text" - this will allow you to have more than one line of text in the cell. Then, type your text, inserting enough spaces between the words so that each word will start on a new line (you can resize the width of the column by clicking and dragging at the top of the document).
Hope this helps!