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....xls" ); sheet . Cells [ 1 , 0 ]....style ); workbook . Save ( "test.xlsx" ); Adding a Link to an External...