This article introduces how to use Aspose.Cells library to calculate formulas in Microsoft Excel using Node.js via C++. By loading an existing Excel file or creating a new Excel file, we can use the methods provided by Aspose.Cells to calculate the formula and get the result. Finally, we save the modified Excel file to disk.... join ( __dirname , "data" ); // Instantiating...file workbook . save ( path . join ( dataDir , "output.xls" ));...