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.... get ( 0 ); //Add a TextBox to the collection int textboxIndex...200 ); //Get the TextBox object TextBox textbox = sheet . getTextBoxes...