Following that, you will be asked whether you want to undo the import or continue the process. You should be aware that you may already have records imported prior to stopping the import. It is recommended that if you do not intend to finish the import, you undo the records. This will help you avoid duplicate records in your database if you decide to run another import for similar data in the future.
Stopped imports can be found by clicking CSV Import in the menu. Select the import you stopped and press the UNDO IMPORT button. Imported records will be cleaned by CSV Loader.