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....ws0 ); //Save the excel file. excelWorkbook1 . Save ( FileName...ws0 ); //Save the excel file. excelWorkbook1 . Save ( "copyworksheet...