File Extension Library


.ZNK File Extension

  • Developer by: Check Point Software Technologies Ltd.
  • Category: Various data Files

What are .ZNK files and how to open them?

Can't open .ZNK file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .ZNK file.

What is a .ZNK file extension?

.ZNK file extension is created by Check Point Software Technologies Ltd.. .ZNK has been classified as Various data Files.

.ZNK is ZoneAlarm Mailsafe renamed data

The znk file extension is associated with ZoneAlarm, a personal firewall software, originally created by Zone Labs and currently developed by CheckPoint Software Technologies LTD.

One of ZoneAlarm features is MailSafe, which detects e-mail attachments and warns the user about their presence. When a potentially dangerous attachment is detected, the program quarantines the file with simple renaming of its original file extension, so it breaks the common program association function in Windows and prevents such files from being executed (or launched via associated program).

A file with znk file extension had its original file extension renamed for security reasons.


How to open:

Probably not meant to be accessed by the user

How to convert:

Probably cannot be converted to anything else.

How to fix problems with .ZNK files

  1. You need to update the application that you normally use to open .ZNK files. Only the latest version of the software supports the current .ZNK file format
  2. You need to check the .ZNK file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)