Opening a ZLO File

The ZLO file type is primarily associated with ZoneAlarm Mailsafe.

ZLO	File extension: ZLO
	File type:	Renamed .PIF File

What is a ZLO file?

ZLO files mostly belong to ZoneAlarm Mailsafe by Zone Labs. Use our "Online ZLO Text Viewer" below to analyze your ZLO file and to see all text it contains.

How to open a ZLO file

You need a suitable software like ZoneAlarm Mailsafe to open a ZLO file. You need a suitable software like ZoneAlarm Mailsafe from Zone Labs to open a ZLO file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ZLO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ZLO file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ZLO Text Viewer

Choose your .zlo file to analyze

or drag and drop it here

Online File Viewer

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What to Do When a .ZLO File Fails to Open

Because .ZLO files can originate from different programs, they aren't universally openable.

Identify the Source: These are typically email attachments quarantined by Zone Labs' ZoneAlarm Mailsafe, which renames potentially dangerous .PIF (Program Information File) files to .ZLO.
Check the Header: Inspecting the first bytes in a text editor or hex viewer may reveal:
- "MZ" magic bytes, implying a Windows executable.
- Binary data typical of a Windows PIF.
Use the Original Software: The original program is usually required; you may need ZoneAlarm Mailsafe or Windows (by renaming it back to .PIF). If uncertain, ask the sender.
Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for ZLO File Extension

Program ID:

ZAMailSafe

Related files:

exe, old, zpf, zld, zop

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\_INS5576._MP -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\ca.exe

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\ca.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\iclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zaplus.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zapro.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zlclient.exe

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zlclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\ZONEAL~1.EXE -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\ZONELA~1\ZONEAL~1\ZONEAL~1.EXE -warning %1

ProgramID: ZAMailSafe
EXEFile: Y:\ZoneLabs\ZoneAlarm\zlclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\ZoneAlarm\zlclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\zonealarm.exe -warning

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a zlo Renamed .PIF File is a special file format by Zone Labs and should only be edited and saved with the appropriate software.

How to solve problems with ZLO files

Associate the ZLO file extension with the correct application.
Update your software that should actually open renamed .pif files. Because only the current version supports the latest ZLO file format. Search, therefore, e.g. on the Zone Labs manufacturer website after an available ZoneAlarm Mailsafe update.
To make sure that your ZLO file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ZLO file online - secure, fast, and no downloads needed.