Make sure you want to delete ALL of your information in the program before following these steps. There will not be a way to undo this action.
Hold down the Control key on your keyboard.
While holding down the control key, click on Help on the menu bar.
From the selection list, choose Execute Sql From the screen that opens, click the black drop down arrow and choose "Delete all Data"
Click on the "Execute" button.
Your data will now be deleted.