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....Input/Edit Freeze or Unfreeze Rows/Columns Hyperlinks ( CellCommand Mode...Read‑only Cells Read‑only Rows/Columns Data Validation using Regular...