The File Extensions Database

.ZM3 File Extension

  • Developer by: Check Point
  • Category: Misc Files

What is an .ZM3 file?

.ZM3 is ZoneAlarm Renamed NCH File

Microsoft Outlook Express Folder (.NCH) file renamed by ZoneAlarm Mailsafe, part of the ZoneAlarm Internet Security Suite; renames the file extension of an Outlook Express folder as a safely precaution so that it cannot run malicious code.

Programs that open ZoneAlarm Renamed NCH File
ZoneAlarm Extreme Security
File Type 2:

ZSNES Movie #3 File

Developer by: ZSNES Category: Video Files

Third recording of a Super Nintendo (SNES) game played with the ZSNES emulator; can be played back using the ZSNES program; the ".zm3" extension is used for the third recording, while the first two movies may use the .ZM1 and .ZM2 extensions.

Single ZSNES video files may use the .ZMV extension.

Programs that open ZSNES Movie #3 File

How to solve problems with ZM3 files

  • Associate the ZM3 file extension with the correct application. On :
    Windows: Right click on any ZM3 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ZM3 files". Mac: Right click (or Ctrl-click) the ZM3 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 .ZM3 is ZoneAlarm Renamed NCH File. Because only the current version supports the latest ZM3 file format. Search, therefore, e.g. on the Check Point manufacturer website after an available .ZM3 is ZoneAlarm Renamed NCH File update.
  • To make sure that your ZM3 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.