How can I change the Custom toolbar name in the Add-In tab?

Hi,

My application is an add-in to the MS excel, and it has a name with "custom toolbar". How can I change the custom toolbar name to any other name. I am not using any Ribbon class / Ribbon XML. It is created using CommandBar,CommandButton, FaceID but only i need the renaming. How can I change this?

shot is show below 

Roopini