You can add rows and columns in your table as you work. Naturally, your table expands to include new rows or columns.
Click where you want to insert a new row or column in the table.
Click the Ribbon’s Layout tab.
Click Insert Above to add a row above the current location, or click Insert Below to add a row below.
Click Insert Left to add a column to the left of the current location in the table, or click Insert Right to add a column to the right.
In this example, a new row is added to the table.
Tip
Right-Click Shortcut You can also right-click on a table cell where you want to add a column or row and choose Insert and specify where you want the new row or column inserted.