File Extension Library

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.ZO4 File Extension

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

What are .ZO4 files and how to open them?

Can't open .ZO4 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 .ZO4 file.

What is a .ZO4 file extension?

.ZO4 file extension is created by Check Point Software Technologies Ltd.. .ZO4 has been classified as Various data Files.

.ZO4 is ZoneAlarm Mailsafe renamed data

The zo4 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 zo4 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 .ZO4 files

  1. You need to update the application that you normally use to open .ZO4 files. Only the latest version of the software supports the current .ZO4 file format
  2. You need to check the .ZO4 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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