can be saved with a password. Documents that are saved with a password cannot be opened without the password. The content is secured so that it cannot be read with an external editor. This applies to content, graphics and OLE objects.
保存的文档均可以带有密码。如果没有密码，则无法打开带有密码的文档。由于文档内容已被保护，因此无法使用外部编辑器进行读取。这种处理适用于内容、图形和 OLE 对象。