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.... Please use [ **Workbook.customXmlParts** ]( https://reference...aspose.com/cells/javascript-cpp/workbook/#customXmlParts-- ) collection...