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....Columns in Apache POI and Aspose.Cells Contents [ Hide ] This section...Panes in Apache POI and Aspose.Cells Freeze Panes in Apache POI...