biswajitrai07, Good afternoon.
This forum is a collaborative place where Excel users present their difficulties or doubts and several other users around the world try to help without any financial reason.
We will be happy to help your rural school.
That is why we are here, because we believe that knowledge must be multiplied and propagated always.
Present what you have already built of your project and point out where the needs or doubts are.
I'm sure several colleagues will come forward to help.
If you prefer to save your spreadsheet to some free website, www.sendspace.com or another and place the download link here.
Make sure there is enough data with concrete examples of what you need as a result.
Belo Horizonte, MG - Brasil.