Bulk Upload Modified data using Excel

How to bulk upload from an excel. Only modified or new rows of data should be uploaded by performing a change tracking of data. Idea is to re utilize the Edit in Excel feature of List view.

Similar feature is not provided or supported by pega anymore. Even i see that pega itself started to import all records in features like Data Table.

If there are thousands of records which need to be updated, we do not want unchanged data being imported every time.