ZZZ File - opening and understanding

Did your computer fail to open a ZZZ file? We explain what they are used for and recommend software that we know can open or otherwise handle your .ZZZ files.

What is a ZZZ file?

The .zzz file extension is used for a data file format that was developed by Piriform Ltd. for one of their software products. These ZZZ files are generated by the CCleaner software, which was also created by Piriform Ltd. for Windows PCs, Mac computers and Android devices. When the CCleaner program securely deletes a file in the user's computer, this software converts the file into the .zzz format.Also known as CCleaner securely deleted files, these ZZZ files contain encrypted data of the file that was securely deleted by the CCleaner software. A .zzz file can be recovered, unencrypted and converted back to its original format by the CCleaner program. This software can be used to remove unused data, wipe confidential data and optimize the performance of Windows PCs, Mac OSX computers and Android devices.These ZZZ files cannot be opened without first recovering and unencrypting them using the CCleaner software. Aside from this application, there are no known programs that can unencrypt and convert these .zzz files back to their original formats.

How to open ZZZ files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension ZZZ for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 1 different ZZZ openers which you will find listed below.

Suggest another file format using extension ZZZ

While we know of one file format using the .ZZZ file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .ZZZ file.

Various viewers for this file format

These apps are known to open certain types of ZZZ files. Remember, different programs may use ZZZ files for different purposes, so you may need to try out a few of them to be able to open your specific file.

GWD Text EditorGWD Text EditorUser submitted
We have not verified any software that we know for certain will work with ZZZ-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with ZZZ-files. If you know one, please use the 'Suggest a program' link below and tell us about it!