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....//Get the range of cells i.e.., A1:C1. Range range = worksheet...cell2Name ); //Merge the cells. range . Merge (); //Saving the Excel...