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....Worksheet 类提供了 Protection 属性,用于应用这些高级保护设置。 Protection 属性实际上是 Protection...the worksheet worksheet . Protection . AllowDeletingColumn = false...