I have client which is working on Dynamics NAV 2017. There is one function which is creating one of the reports in excel and send on their customer e-mail. The problem starts when some of the customers use old xls formats and they can open only xls formats. When I'm using SAVEASEXCEL function the format by default is xlsx ... I've tried to change name with DocumentNo.xls in extension but in background the file is xlsx - not xls.
So, my question is: Do we have in Dynamics NAV 2017 option for saving files in old excel format (xls).