<p>How to insert data into a particular cell in a Excel Work sheet in Asp.net</p>

Does the worksheet already exist? If it does you can open the worksheet using the open-source component
Koogra
og the commercial component from
Infragistics
(there are others as well) and modify it in code. The alternative is to open the worksheet using excel automation, but that is not recommended in a web project.
By the way.
You are not the first to ask this question.