You're here because you have a file that has a file extension ending in .prz. Files with the file extension .prz can only be launched by certain applications. It's possible that .prz files are data files rather than documents or media, which means they're not meant to be viewed at all.

The PRZ file extension is used for data files created through IBM’s Lotus Freelance Graphics, a program developed by Lotus Software intended to create presentations and information graphics. The application was originally created as an enhancement for the Lotus’ spreadsheet program. It enables users to create, compile and arrange freely chosen objects such as text, diagrams, charts, tables, digital images and basic drawings into a digital slide show. Freelance Graphics’ popularity started to decline when its program was developed for IBM’s OS/2 while its rival, PowerPoint, converted to the Windows system. PRZ files, which are presentation files from Freelance Graphics, contain data from the presentation slides itself including layout, images, text and other objects. Also, it may be used for giving visual and oral presentations. To view and manage PRZ files, users may use its authoring program, which is the Lotus Freelance Graphics and other Lotus SmartSuite programs. Such files may also be converted to MS PowerPoint format.

Launch a .prz file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .prz file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .prz files aren't yet associated with it. In this case, when you try to open a .prz file, you can tell Windows which application is the correct one for that file. From then on, opening a  .prz file will open the correct application. Click here to fix .prz file association errors

Be careful not to rename the extension on .prz files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .prz. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.