How to hide cells in Excel output

Hi there,

I am trying to make a cell in an Excel workbook hidden or locked but once got the output, I still could see and edit the cell in the output file. I was not sure if I had missed something. Below is my hopeless code.

Any idea would be most appreciated

Regards,

Sam

var oExcelWorkbook = Context.createExcelWorkbook("myexcel.xls");

//

var oSheet = oExcelWorkbook.createSheet("mysheet");

var oHeaderSet = oSheet.createRow(0);       



var oCell = oHeaderSet.createCell(i);

oXlsCellStyle = oCell.getCellStyle();

oXlsCellStyle.setAlignment(Constants.ALIGN_CENTER);

oXlsCellStyle.setHidden(true);

oXlsCellStyle.setLocked(true);

oCell.setCellStyle(oXlsCellStyle);

oCell.setCellValue("ABC");

oExcelWorkbook.write();