.IPR File Extension

Project file created by InstallShield Professional, a program used for creating InstallScript-based installation packages; contains project information, including settings, directory structures, scripts, and installer dialog settings.

IPR files store the necessary information to build an installation packages.

NOTE: IPR files are created using InstallShield Professional 3.x - 7.x.

Project file created by IntelliJ IDEA, a Java IDE; contains XML settings for the project, including the directory structure, source code files, compiler settings, and included modules (.IML files); used for saving and loading development projects.

Data file used by iProcrastinate personal organizer software; saves the information entered by the user, such as to-do lists, events, and deadlines; enables the data to be backed up and also contains data used for synchronization between the Mac, iOS devices, and the Dropbox service.