How to clear BO Publication Job output files
We have BO Publication Job which triggers mails to users with excel attachment. Around 500+ mails with attachments gets generated. Is there a way to clean up these already generated instances. When i checked in File store\Output folder i could see the instances. But these are scattered in different folders and all are not in one folder for particular publication run date.
My Question is
1. How can i delete instances that generated for that particular Publication on a particular day.
2. If i delete those instances will there be any impact.
Thanks in Advance.