try {. $PSScriptRoot\..\..\LoadPSD1.ps1} catch {} $xlSourcefile = "$env:TEMP\Source.xlsx" Remove-Item $xlSourcefile -ErrorAction Ignore #Put some simple data in a worksheet and Get an excel package object to represent the file $excel = 1..10 | Export-Excel $xlSourcefile -PassThru #Add a new worksheet named 'NewSheet' and copying the sheet that was just made (Sheet1) to the new sheet Add-WorkSheet -ExcelPackage $excel -WorkSheetname "NewSheet" -CopySource $excel.Workbook.Worksheets["Sheet1"] #Save and open in Excel Close-ExcelPackage -ExcelPackage $excel -Show