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....to write a large data to a worksheet in optimized mode. C# //Instantiate...manually: Cells cells = book . Worksheets [ 0 ]. Cells ; cells . MemorySetting...