In Microsoft Word, you can make rows and columns by using the toolbar on the ribbon.
To make a row, select a cell in the first row and then click "Insert" on the ribbon. Next type "TAB" for a tab between cells, then type your text. You can then press enter to start a new line or press backspace to delete it.
To make columns, select multiple cells in the first column and then click "Insert" on the ribbon. Type "COLUMN" after your text to create your next column (e.g., COLUMN 1). You can then click "Enter" or press backspace to start a new line or delete it.