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.... 使用Cell类的Formula属性向单元格添加公式。在向单元格应用公式时,始终以等号(=)开头,就像在Microsoft...PutValue ( 3 ); //Adding a SUM formula to "A4" cell worksheet . Cells...