@Karthik Check your deployment schedule on the "NSPB SS Cleanup" script {customscript_nspbcs_ss_cleanup}. That is the NSPB script that is suppose to be auto deleting files after the data syncs. Ours was set to only run 4 times per day, but we were syncing data to NSPB every hour... the amount of files it was generating way outpaced the delete script, which is what caused our file cabinet storage to pile up. Support told me that the script can only delete a max of 250 files per execution due to governance limits. We cranked the deployment schedule up to run every 15 mins for a couple weeks to get the file cabinet folder cleaned up. Once it got caught up, we've adjusted back to running every hour and its maintained a reasonable folder size ever since. Hope that helps!