‪Create or read password protected Excel files in C#, VB.NET, Java, C++, PHP and other!

EasyXLS™ library enables you to protect your Excel file from unauthorized access by setting passwords for opening or / and modifying the document. If you set the password for opening the file, the Excel file will be encrypted.
http://www.easyxls.com/manual/basics/password-protected-excel-file.html

‪Create Excel pivot tables in C#.NET, VB.NET, Java, C++, PHP and other, using EasyXLS Excel library! The pivot tables are reports in Excel that summarize worksheet data for a customized and clearer view over it. EasyXLS library allows you to create a pivot table in Excel, to set the data source and to arrange its data and fields into desired areas.
http://www.easyxls.com/manual/basics/excel-pivot-table.html

If not familiar with pivot tables in MS Excel or for technical related details, learn about Excel pivot tables.

‪Create Excel filter or autofilter in C#.NET, VB.NET, Java, C++, PHP and other, using EasyXLS Excel library! It permits to filter a range of data from an Excel sheet and hide records that don’t meet your criteria, displaying just a subset of data in a range of cells.
http://www.easyxls.com/manual/basics/excel-filter-and-autofilter.html

‪Import Excel sheet to DataSet in C#.NET using EasyXLS Excel library! The data is imported from a specific Excel sheet.
http://www.easyxls.com/manual/tutorials/csharp/import-excel-sheet-to-dataset.html

‪Import Excel file to DataSet in C#.NET using EasyXLS Excel library! Learn how to do it and save valuable time with EasyXLS!
http://www.easyxls.com/manual/tutorials/csharp/import-excel-to-dataset.html

‪Export data to Excel file in C#.NET with formatting styles using EasyXLS Excel library! http://www.easyxls.com/manual/tutorials/csharp/format-excel-cells.html

‪Create Excel file in C#.NET using EasyXLS Excel library!
http://www.easyxls.com/manual/tutorials/csharp/create-excel-file.html

‪How many chart types can you create in Excel, using EasyXLS Excel library, in C#, VB.NET, Java, PHP, C++ and other programming languages?

http://www.easyxls.com/manual/basics/excel-chart-types.html

‪Create Excel charts that can be placed in a separate sheet. A chart can have two positions, as a distinct sheet or as an object in a worksheet. EasyXLS also allows you to read Excel files that contain charts and extract chart information.

http://www.easyxls.com/manual/basics/excel-chart-sheet.html

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Create Excel charts that can be positioned inside a worksheet in C#, VB.NET, Java, PHP, C++ and other programming languages! A chart can have two positions, as a distinct sheet or as an object in a worksheet.

http://www.easyxls.com/manual/basics/excel-chart-inside-sheet.html