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.... save ( dataDir + "Test_Workbook.xls" ) # Removing a...workbook . save ( dataDir + "Test_Workbook_RemovedProperty.xls"...