Aspose.Cells VBA, workbook encryption, named ranges, spreadsheet formatting, drawing objects like images, OLE objects, and importing or creating charts. You can also create Excel files using a designer spreadsheet, smart marker, or API and apply formulae and functions. It supports CSV, SpreadsheetML, PDF, and all file formats from Excel 97 to Excel 2007.

Changes:
This release includes how to get icon sets, data bars, or color scales objects used when adding conditional formatting to a cell or a range of cells. Support for rendering a worksheet’s background in an output HTML file and parsing custom views and scenarios while converting from one Excel file format to another are added. Moreover, this release improves the Excel to PDF rendering feature, which sometimes took more time to convert large Excel files to PDF. Issues around reading and writing Microsoft Excel (2003 – 2007/2010) file formats have been fixed

URL:
Aspose.Cells for .NET – Freecode