Yes. This advanced featured is available from the BillionGraves website. You must export your spreadsheet as a CSV (Common Separated Values) file, before importing as BillionGraves records.
#1 Log in to BillionGraves.
#2 Hover over Research (main menu).
#3 Click Upload Batch (spreadsheet).
#4 Follow the instructions on the Upload Supporting Records Batch page.