How can Internal Candidate Applications and Documents be deleted automatically?

Is there an automated solution for the deletion of application data (assignment to job requisition including the application documents) for internal candidates (employees who have applied)? Our goal is to delete only the application data and the application documents, not the employee profile itself.

Is there a possibility to delete only this particular data via HDL loader?

At the moment we delete the data (application) manually by selecting the candidate within candidate search, jump to respecting job requisition and then click 'delete application'. This is very cumbersome.