Aspose.Cells

Convert XLS to TSV in C#.NET

Convert XLS to XLSX in C#.NET

Install Aspose.Cells using NuGet and Create Microsoft Excel Documents in Various Formats

Convert XLS to XLSM in C#.NET

Convert XLS to CSV in C#.NET

Convert XLS to Tab Delimited in C#.NET

Convert XLS to XLSB in C#.NET