How to make Excel sheet readonly using asp.net?

Question

My Task is to generate excel sheet as read only(i e., columns data should not be editable) using asp.net? I am getting data from the database,then am generating the excel sheet for that data but it is editable.I want to make my excel sheet as non editable. How should I do? Anybody can please help me?

I have written code like this..

Thanks in Advance....

Answer 1

Try to look this topic - first and second . Second one offers a solution even for cells.