.ZM9 File Extension

Zip file renamed by MailSafe, an e-mail security program that is included with ZoneAlarm software; typically received as an e-mail attachment and quarantined by MailSafe to make sure it does not contain any viruses or malicious code.

Since ZM9 files are renamed .ZIP files, they can be opened with a standard ZIP decompression program by changing the ".zm9" extension to ".zip".