Found one file extension association related to GrandPerspective and 1 file format developed specifically for use with GrandPerspective.
Platform, operating system: Apple macOS / Mac OS X
Go to: GrandPerspective description
SourceForge software list & details
Developer / company: SourceForge
GrandPerspective is a small utility application for Mac OS X that graphically shows the disk usage within a file system. It can help you to manage your disk, as you can easily spot which files and folders take up the most space. It uses a so called tree map for visualisation. Each file is shown as a rectangle with an area proportional to the file's size. Files in the same folder appear together, but their placement is otherwise arbitrary.
Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.
GrandPerspective default file extension associations
Comparison table of actions that GrandPerspective can perform with its associated file type beta
This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of GrandPerspective (SourceForge.net), or check out their product website.
File type \ Action