Merge cells for Excel file using EasyXLS library! XLS, XLSX, XLSM, XLSB files in .NET.
http://www.easyxls.com/manual/tutorials/csharp/excel-merge-cells.html

Excel file page orientation (portrait, landscape), paper size, print area, page breaks by EasyXLS library! XLS, XLSX, XLSM, XLSB files in .NET.
http://www.easyxls.com/manual/tutorials/csharp/excel-print-area-page-orientation.html

Create Excel with header & footer in C#.NET, ASP.NET web pages or windows application by EasyXLS library! XLS, XLSX, XLSM, XLSB files in .NET.
http://www.easyxls.com/manual/tutorials/csharp/excel-footer-header.html

Excel cell comment in C#.NET from ASP.NET web pages or windows application by EasyXLS library! XLS, XLSX, XLSM, XLSB files in .NET. http://www.easyxls.com/manual/tutorials/csharp/excel-cell-comment.html

Protect Excel sheet and cells in C#.NET from ASP.NET web pages or windows application by EasyXLS library! XLS, XLSX, XLSM, XLSB files in .NET. http://www.easyxls.com/manual/tutorials/csharp/protect-excel-sheet-cells.html

Export and import Excel file with macro in C#, VB.NET, Java, C++, PHP and other!
http://www.easyxls.com/manual/basics/excel-macros-vba-project.html

Set chart title and axis titles of Excel chart, format chart titles in C#, VB.NET, Java, C++, PHP and other! http://www.easyxls.com/manual/basics/excel-chart-axis-title.html

Format gridlines for Excel chart in C#, VB.NET, Java, C++, PHP and other! http://www.easyxls.com/manual/basics/excel-chart-gridlines.html

Format Excel chart legend in C#, VB.NET, Java, C++, PHP and other! http://www.easyxls.com/manual/basics/excel-chart-legend.html

Format Excel chart plot area in C#, VB.NET, Java, C++, PHP and other! http://www.easyxls.com/manual/basics/excel-chart-plot-area.html