How to make something like the spreadsheets of Excel
<p>I need to make something like the spreadsheets of Excel, where I can add and insert more columns and rows so that prestored information could be added with no problem.</p>

<p>Thus, any type of numerical function or number could be inserted in between the empty boxes or spaces. So that, for example, I could add, subtract, multiply, or divide the numbers even if we insert more numbers in between or at either ends.</p>

<p>could somebody tell me how should i start it, what approach i should follow to make it in asp.net.</p>
