This article provides sample code to set page options of Excel worksheets programmatically using the C++ API. You will be able to set Page Orientation, Scaling Factor, FitToPages Options, Paper Size, Print Quality, First Page Number....Portrait ); // Save the workbook workbook . Save ( outDir + u ...SetZoom ( 100 ); // Save the workbook workbook . Save ( outDir + u "ScalingFactor_out...