Files with qrn file extension can be found as quarantine files from some older anti-virus programs or security scanners.
QRN file extension - Quarantine data
What is qrn file? How to open qrn files?
File type specification:
The qrn file extension is sometimes used by various anti-malware, or anti-virus programs for quarantine files. Basically a file archive that contains suspicious or infected files found by scanner.
This qrn file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
