Spire.XLS for .NET is a powerful and standalone Excel API designed for developers to create, read, write, convert, and print Excel files in any .NET-based application—including C#, VB.NET, ASP.NET, .NET Core, Mono, and Xamarin.iOS. It eliminates the need for Microsoft Office or Excel to be installed, making it ideal for both desktop and web development scenarios.
With support for Excel 97–2003 (.xls) and Excel 2007+ formats (.xlsx, .xlsb, .xlsm), as well as OpenOffice (.ods), Spire.XLS delivers broad compatibility and high performance. It is widely used by financial institutions, government agencies, and enterprise software providers for its reliability, scalability, and ease of integration into existing systems.
