' Save file
savePath = folderPath & "Report_" & SafeFileName(key) & ".xlsb"
If Dir(savePath) <> "" Then Kill savePath
Application.DisplayAlerts = False
regionWorkbook.Sheets(1).Delete ' Remove the default empty sheet
Application.DisplayAlerts = True
regionWorkbook.SaveAs FileName:=savePath, FileFormat:=xlExcel12
regionWorkbook.Close SaveChanges:=False