An apmaster file extension is related to the Apple Photos and Apple iPhoto applications.

Detailed description

Software that open apmaster file

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APMASTER file extension - Apple Photos data

What is apmaster file? How to open apmaster files?

File type specification:

Various data file type icon Various data file type

The apmaster file extension is associated with the Apple Photos and Apple iPhoto software included in OS X that allow users to manage and edit digital photos.

The apmaster file stores some kind of data used by Photos and iPhoto.

The default software associated to open apmaster file:

Apple Photos icon

Apple, Inc. logoApple Photos  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Photos has been engineered from the ground up to help you keep photo growing library organized and accessible. Powerful and intuitive editing tools help you perfect your images as well as create beautiful gifts for sharing.

iPhoto icon

Apple, Inc. logoiPhoto  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Apple iPhoto is photos managing application for Mac OS X. iPhoto is distributed with the Apple iLife Suite. Apple iPhoto is able to organize, improve, print and share on-line your photos.

Help how to open:

The apmaster files are used for internal purposes of Apple Photos programs.

How to convert:

Conversion to other formats is not possible.

List of recommended software applications associated to the .apmaster file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open apmaster file, edit apmaster file, convert apmaster file, view apmaster file, play apmaster file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with apmaster file - Apple Photos data

Click on the software link for more information about Apple Photos. Apple Photos uses apmaster file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Apple macOS / Mac OS X:

Main software associated with apmaster file by default:
Apple Photos small icon Apple Photos
iPhoto small icon iPhoto

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