The Form button has not been included on the Ribbon, but you can still use it in Excel 2010 by adding the Form button to the Quick Access Toolbar.
Add the Form button to the Quick Access Toolbar
Click the arrow next to the Quick Access Toolbar, and then click More Commands.
In the Choose commands from box, click All Commands.
In the list box, select the Form button , and then click Add.
Tip: For more information about how to use the data form, see Add, edit, find, and delete rows by using a data form.