Solve your problem using Microsoft Excel, and let ExcelEverywhere generate an ASP or ASP.NET-page. Looks like and calculates like the spreadsheet. Supports 190 Excel-functions. Code-behind module for backend-integration. No Excel needed on server!
Convert MS Excel spreadsheet into good-looking calculating web page. No plugins. No programming needed. Supports 180 Excel-functions. Use it for expense report, survey, order form, application, financial advisor, ROI. Live line, bar, pie charts!
A DLL for exchanging data between .NET and Excel.
ActiveX Control for exchanging data between Visual Basic and Excel.
ActiveX control for viewing/interacting with Excel workbook files.
ActiveX DLL to create HTML files and tables from Excel workbooks.