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...."third sheet" ); // Freeze just one row sheet1 . CreateFreezePane...2 , 0 , 2 ); // Freeze just one column sheet2 . CreateFreezePane...