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....setName ( "My Worksheet" ) # Saving the modified Excel file in...Excel 2003) format workbook . save ( @data_dir + "book.out.xls"...