File Extension Library


.ZMK File Extension

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

What is an .ZMK file?

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

.ZMK is ZoneAlarm Mailsafe renamed data

The zmk 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).

The file with zmk 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 Open .ZMK file on different platforms

Open .ZMK File on Windows

  • Right-click a .ZMK
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .ZMK file and Select check box "Always use this app to open .ZMK files" Press "Ok"

Open .ZMK File on Mac

  • Right-click (or Ctrl + Left-click) the .ZMK file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .ZMK File on Linux

Right click on the .ZMK file, choose "Open with" and select a program from the list above

Open .ZMK File on iPhone

Select a file. If you don't see an application to open the .ZMK file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .ZMK File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .ZMK files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .ZMK files

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