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....options ); // Access first worksheet and cell A1 const cell = workbook...workbook . worksheets . get ( 0 ). cells . get ( "A1" ); // Assertions...