How to open ZL4 files

Did your computer fail to open a ZL4 file? We explain what ZL4 files are and recommend software that we know can open or convert your ZL4 files.

What is a ZL4 file?

The ZL4 file extension indicates to your device which app can open the file. However, different programs may use the ZL4 file type for different types of data.

While we do not yet describe the ZL4 file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about ZL4 files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

Generic ZL4

These apps are known to open certain types of ZL4 files. Since many different programs may use ZL4 files for different purposes, you may need to try a few of the apps to open your specific ZL4 file.

ZoneAlarm ClientZoneAlarm ClientUser submitted
Zone Labs ClientZone Labs ClientUser submitted
ZoneAlarm Security SuiteZoneAlarm Security SuiteUser submitted
ZoneAlarm Anti-SpywareZoneAlarm Anti-SpywareUser submitted
ZoneAlarmZoneAlarmUser submitted
ZoneAlarm Extreme SecurityZoneAlarm Extreme SecurityUser submitted
ZoneAlarm Anti-virusZoneAlarm Anti-virusUser submitted
PCGATE PersonalPCGATE PersonalUser submitted
Alice Total SecurityAlice Total SecurityUser submitted
ZoneAlarm ProZoneAlarm ProUser submitted

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

We have not verified any programs that we know for certain can work with ZL4-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with ZL4-files. If you know one, please use the Suggest link below and tell us about it!