How to open ZO5 files on your device

If an error occurs when you try to open ZO5 file on your device, you should do two things – install appropriate software and associate ZO5 files with this software. If this does not solve the problem, then the cause may be different – you will find more details in this article.

ZO5 File Extension

  • File type ZoneAlarm Mailsafe Renamed
  • File developer Check Point Software Technologies Ltd.
  • File category Misc Files
  • File popularity rating
    • Star

How to open ZO5 file?

There can be various causes of problems that can arise when opening opening .ZO5 files. Each problem requires a different approach, but most can be solved by following he instructions below.

Step 1. Install a program that supports ZO5 files

In order to open ZO5 file an appropriate program that supports this file format must be installed on the system. Below is the list of programs that support files with ZO5 extension.

Programs that can open ZO5 files

Download installer for given application and launch it. After the installation has been completed, ZO5 files should be opened with installed application by default next time you try to open this type of file.



Not all listed applications will be capable of performing all operations on ZO5 files. Some applications may only be capable of opening such file and viewing its contents while the purpose of others may be converting files to other file formats. Therefore you should check beforehand the capabilities of applications in relation to ZO5 files.

Step 2. Associate given software with ZO5 files

A situation can arise where user has an appropriate application supporting ZO5 files installed on their system, but such application is not associated with this type of files. In order to associate given application with ZO5 files user should open a file submenu by right-clicking the file icon and selecting "Open with" option. System will display a list of suggested programs that can be used to open ZO5 files. Select appropriate option and check "Always use selected application to open this kind of files". System will save this information from now on use selected program to open ZO5 files.

When the above-mentioned solutions fail, other options must be pursued. It is possible that the ZO5 file in question is corrupted or damage. The most common causes of file damage are:

  1. File with ZO5 extension is incomplete (for example, file has not been downloaded completely from the internet or not copied properly from source)
  2. File data is corrupted
  3. Damaged or corrupted storage medium on which the ZO5 file is stored
  4. File icon does not represent the original file but is only a shortcut to the location where the ZO5 file was saved and then deleted
  5. User account is not privileged to perform operations on ZO5 files. In that case it is advised to contact the system administrator or an IT expert

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