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...."A1:B3" , true ); // Saving the Excel file workbook . save ( dataDir...Assistant Close Convert Chart to Image in xlsx4j Create Pivot Charts...