invoice_no,asset_serial_no,billed_employee,billed_rent,vendor_status
INV-101,SN1001,Asha Rao,1600,Active
INV-101,SN1002,Rohan Shah,4200,Active
INV-101,SN9999,Unknown User,1600,Active
INV-101,SN1004,Vikram Iyer,3600,Active