If user has multiple data files imported into multiple sheets but also have other reference sheet, etc., Origin 2019 can better detect import data worksheet and only import to them when doing batch processing. 

E.g. user import 3 files into 1st 3 sheets. 4th sheet is a reference sheet, some analysis is done and analysis template is saved.

When using such workbook as analysis template for batch processing 6 files, first 3 will be processed together; second 3 files will be processed together.