Learn how to set the margins of an Excel worksheet using C++. This guide covers setting page margins, centering content, and configuring header and footer margins programmatically with Aspose.Cells for C++....SetTopMargin ( 3 ); // Save the Workbook workbook . Save ( outDir + u "SetMargins_out...( true ); // Save the Workbook workbook . Save ( outDir + u "CenterOnPage_out...