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....Español Svenska Türkçe 日本語 Insert a chart Contents [ Hide ] OpenXML...string FileName = FilePath + "Insert a chart.xlsx" ; string worksheetName...