A zm3 file extension is related to the ZoneAlarm MailSafe component used to protect e-mail. A zm3 file stores renamed Outlook e-mail tree file (nch extension by default).

There is one other file type using
the ZM3 file extension!

empty icon.zm3 - ZSNES Movie #3 file

Detailed description

Software that works with zm3 file extension

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ZM3 file - ZoneAlarm Mailsafe renamed NCH file

What is zm3 file? How to open zm3 files?

File type specification:

Various data file type icon Various data file type

zm3 file icon: zm3 filetype icon

The zm3 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 zm3 file extension originally had NCH file extension (Outlook e-mail tree file). Simple renaming will restore the Windows associations with such file, however it is not advised, unless you are absolutely sure it safe to do.

Updated: February 24, 2018

The default software associated to zm3 file type:

ZoneAlarm Pro icon

Check Point Software Technologies Ltd. logoZoneAlarm Pro  Microsoft Windows software

Company or developer:
Check Point Software Technologies Ltd.

ZoneAlarm Pro is a set of tools used to protect computer against hacker attacks,destroy spyware, and secure privacy.

Related articles:

Mailsafe renamed file extensions

Help how to open:

You can rename the ZM3 file extension back to NCH and work with the file normally. This can however be potentially dangerous, because the file was quarantined for a reason. So always re-check it with your anti-virus or anti-spyware programs before you rename the files.

How to convert:

It is unlikely that this file type can be converted to anything else.

List of software applications associated to the .zm3 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open zm3 file, edit zm3 file, convert zm3 file, view zm3 file, play zm3 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting zm3 files.

  • Create zm3 file
  • Others zm3 file

Programs that can create zm3 file - ZoneAlarm Mailsafe renamed NCH file

Programs supporting the exension zm3 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about ZoneAlarm Pro for create zm3 file action.

Microsoft Windows:

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