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....Conversion to PDF - Invalid formula:"‘APRIL'‘12’.A1:‘APRIL'‘12’...ArrayIndexOutOfBound” when calling Workbook.calculateFormula() in an Excel...