.NET library to write/read/modify XLS (Excel) from .NET programming languages Visual Basic.NET, C#, ASP.NET. Office or Excel is NOT required.

Key Features:

Native .NET component for .NET 2.00;
Cells, rows, worksheets support;
Unicode support;
Cells formating (font, color, border style, alignment) is supported;
Reading of XLS document files is supported - you can use open existing XLS file, add worksheet and save as new XLS file;
Export to HTML, XML, TXT, CSV is supported