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....Diagram for Java API,开发者可以在打开Visio文件前检测其格式,因为文件扩展名并不能保证文件内容是合适的。...System . out . println ( "The spreadsheet format is: " + info . getFileFormatType...