Please, could you specify your question? Where do you save the data you import by excel import? In the case you save it into an entitiy and you show the data in a datagrid on the screen, you could build a microflow called by a button in the grid context, which deletes the amount of data based on a filter you set.
Hi Aditya,
You can create action button inside data view.In that button you need to call microflow in which you will do your bussiness logic for deleting data which you imported.
Thanks!