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....Cells Java打开文件,只需调用Document类的openfile()方法,并指定要追加到末尾的第二个文档。...self . dataDir + "Book1.xls" ) print "Workbook opened using path...