Export data to XLSX Excel file in VB.NET from ASP.NET web pages, windows applications, winforms, console applications! Spreadsheets in .NET.
https://www.easyxls.com/manual/tutorials/vb-net/export-data-to-xlsx-file.html

Export password protected Excel file and encrypt Excel file using EasyXLS library! XLS, XLSX, XLSM, XLSB file in .NET.

https://www.easyxls.com/manual/tutorials/vb-net/encrypt-excel-file.html

Export Excel with pivot chart using EasyXLS library! XLS, XLSX, XLSM, XLSB file in .NET.

https://www.easyxls.com/manual/tutorials/vb-net/create-excel-pivot-chart.html