No matter how you create your table (either with or without the Table Wizard), you can modify it using Table Design view. If you create the table without Table Wizard, Table Design view will look very familiar to you.
To enter Table Design view, do one of the following:
From the Database window, click the Table tab, select the table you want to work with, and click the Design button.
If the table appears in Datasheet view, select View, Table Design.
Don't forget, you can quickly change views with the View button at the far left end of the standard toolbar. Click the down arrow next to the button, and select ...