Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms...., using VSTO or using Aspose.Cells, etc. Please use [Workbook...https://reference.aspose.com/cells/net/aspose.cells.markup/customxmlpartcollect/methods/add...