Excel Functionalities

Is it true that excel functionalities does not work with excel opened in the background ?

If I open a excel by double clicking it , will I be able to use the excel commands on it such as Get cell, set cell ?

I have to paste a screenshot to excel, I guess I can not do it through excel functionalities ?

Yes, That’s True.

Is it true that excel functionalities does not work with excel opened in the background ?

Yes

If I open a excel by double clicking it , will I be able to use the excel commands on it such as Get cell, set cell ?

No

I have to paste a screenshot to excel, I guess I can not do it through excel functionalities ?

You can not do it through excel functionalities.