[![enter image description here](https://i.stack.imgur.com/AR1bM.jpg)](https://i.stack.imgur.com/AR1bM.jpg)

![2](https://i.stack.imgur.com/76M48.jpg)

I have the Excel vsto add-in code, but I can only use it in sheet1,
I ask is how to make my Excel vsto add-in code, work in sheet1, sheet2, sheet3.