Creates the Excel file but cannot rerun code again if Excel sheet has been created already.

Hi,

This should work as expected:

function ExcelExample_1() {
  //Get the data that will be added into Excel file
  var curTime = aqDateTime.Now();
  var cpu = Sys.CPUUsage;
  
  var fileName = "c:\\temp\\DataStorageExcel.xlsx";
  var excelFile;
  var excelSheet;
  
  if (aqFile.Exists(fileName)) {
    //open the existing file
    excelFile = Excel.Open(fileName);
    var sheetExist = false;
    for (var i = 0; i < excelFile.SheetCount; i++) {
      excelSheet = excelFile.SheetByIndex(i);
        if (excelSheet.Title == "CPU Report") {
            sheetExist = true;
            break;
        }
    }
    if(!sheetExist){
        excelSheet = excelFile.AddSheet("CPU Report");
    }
  } else {
    //Create new excel file
    excelFile = Excel.Create(fileName);
    excelSheet = excelFile.AddSheet("CPU Report");
  }
  var rowIndex = excelSheet.RowCount + 1;
  excelSheet.Cell("A", rowIndex).Value = curTime;
  excelSheet.Cell("B", rowIndex).Value = cpu;
  excelFile.Save();
}