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....المقال المفصل على الوصول إلى TextBox عبر اسمه سيناريو الاستخدام...getWorksheets (). get ( 0 ); //Add a TextBox to the collection int idx =...