.APFOLDER file extension is created by Apple, Inc.. .APFOLDER has been classified as Various data Files.
The apfolder file extension is associated with the Apple Photos, a photo editing and photo management tool distributed as a part of Apple OS X and macOS operating systems.
The apfolder file stores some kind of data used by Apple Photos.
The same file is also used by Apple iPhoto a predecessor of Apple Photos.
How to open:
This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.
How to convert:
As far as we know, this .apfolder file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.