This article introduces how to use Aspose.Cells library to directly calculate custom functions in Microsoft Excel without writing the function in a worksheet using JavaScript via C++. Load an existing Excel file or create a new one, calculate the custom function, and save the modified file....body > < script src = "aspose.cells.js.min.js" ></ script > < script...Value: ' + ret + '</p>' ; }); </ script > </ html > Console Output...