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....Cells 将 Excel 图表转换为图像。 将图表转换为 EMF //Instantiating...//Adding a new worksheet to the Excel object int sheetIndex = workbook...