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....提供了一个表示Excel文件的类Workbook。Workbook类包含一个Worksheets集合,允许访问Excel文件中的...file stream containing the Excel file to be opened FileStream...