The File Extensions Database


.ZOI File Extension

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

What is an .ZOI file?

.ZOI is ZoneAlarm Mailsafe renamed data

The zoi 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 zoi 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 solve problems with ZOI files

  • Associate the ZOI file extension with the correct application. On :
    Windows: Right click on any ZOI file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ZOI files". Mac: Right click (or Ctrl-click) the ZOI file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .ZOI is ZoneAlarm Mailsafe renamed data. Because only the current version supports the latest ZOI file format. Search, therefore, e.g. on the Check Point Software Technologies Ltd. manufacturer website after an available .ZOI is ZoneAlarm Mailsafe renamed data update.
  • To make sure that your ZOI file is not corrupted or virus-infected, get the file again and scan it with antivirus software.