Thank you for contacting Syncfusion support.
We have checked your reported requirement and we would like to let you know that we have provided the print option (Margins, Orientation, PageSize) in Import/Export support. We can able to Export / Import the spreadsheet with the provided options available in our PaperSettings. For more details refer the below UG links,
Could you please check the above details and get back to us, if you need any further assistance on this?
Vinoth Kumar S