this might be a dumb question, But I think if I ask, I could be find my solution. I have to display a table daily. Every days' tables must be stored in database or something. Users can go through calendar and see the tables. The main problem is how can I save these tables? The structure of table changes everyday. Some day, there are 2 tables, some day 3. 

I've got these ways to do this : 

-- Everyday I draw tables in html and the values, save it to database manually. (which is really I don't want to. I'm doing it that way now. )

-- Create table drawer in my admin page, and save it to database. (which is really hard to do this. i think.)

-- Save these tables to excel (.xls) files and save the path to the database. (which is if is it possible, that'd be great!)

Any suggestions? 

BTW, I'm using ASP.Net and C# for my code behind. The database system is MSSql.