Bytescout XLS Viewer is a safe way to view, print XLS (Excel 97-2003), XLSX (Excel 2007), ODS (Open Office) spreadsheets with MS Office or Open Office NOT REQUIRED. Based on Bytescout.XLS library for .NET .NET developers
Export to HTML is supported as well

Based on Bytescout.XLS library for .NET (VB, C#, ASP.NET) software developers