Customize Quick Access Toolbar in Microsoft excel 2010
Yes, in Microsoft excel 2010 Quick Access toolbar is customizable, by default in Microsoft excel quick access toolbar has three options that are Save, Undo, Redo.
To add more commands click on small downward arrow, this will open drop down menu, you will see that three options are already clicked, there are other option which are not checked, if you like to add those options just click the check box, the new option will appear in Microsoft excel 2010 quick access toolbar as shown in figures below.