.ZM3 File Extension
File Type 1ZoneAlarm Renamed NCH File
What is a ZM3 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.
File Type 2ZSNES Movie #3 File
.ZM3 File Association 2
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.