Delete
Open a data
extraction file, select a data source and click delete icon 
and the following prompt will appear:
Click [OK] to delete the data source and [No] or the cross sign X at the upper right corner, to disable the deletion.
Open a data
extraction file, select a data source and click delete icon and the following prompt will appear:
Click [OK] to delete the data source and [No] or the cross sign X at the upper right corner, to disable the deletion.