The ending PPZ denotes a presentation (slideshow), which lies in a self-extracting archive. This presentation does not require PowerPoint or an external viewer to be displayed.
PPZ files were created using PowerPoint's Pack & Go feature, versions 97 through 2002.
In addition to the viewer, the files may include text, images, glare effects, audio, video, and macros. Because it is an executable file, emails can filter out PPZ files. Checking with an antivirus program is always indicated for PPZ files, since the executable file can also contain malicious software.
The latest versions of Microsoft PowerPoint no longer support this format.
Most often resolving problems with opening PPZ files is very simple. Just install an appropriate program that supports such files. All of the listed programs support PPZ files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of PPZ files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate PPZ files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Microsoft PowerPoint applications is not on the list, select "Browse" option in order to manually locate the directory where Microsoft PowerPoint has been installed.
Sometimes problems with opening PPZ files may not lie with the application itself, but can arise due to other causes, such as: