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.... FreezePanes ( 2 , 2 , 2 , 0 ); workbook . Save ( .... CreateFreezePane ( 0 , 2 , 0 , 2 ); // Freeze just one column...