Files with contents file extension an be found on Apple Mac OS computers. Some sort of internal file.

Detailed description

Software that works with contents file extension

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CONTENTS file - MAC OS X (macOS) data

What is contents file? How to open contents files?

File type specification:

Various data file type icon Various data file type

contents file icon: contents filetype icon

The contents file extension is reported to be used in some version of Apple Mac OS X (macOS) operating system.

Most likely one of the internal system format, or something related to one of the Apple apps.

Updated: August 14, 2018

The default software associated to contents file type:

macOS icon

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

Company or developer:
Apple, Inc.

macOS is Unix-based desktop operating system, a successor of Mac OS X system for MacBook-family, iMac, Mac Mini and Mac Pro computers, developed and sold by Apple, Inc.

macOS High Sierra (10.13) is including various new features, like digital personal assistant called Siri, new Apple Pay service, iCloud drive, new Messages app, Apple File System a successor of HFS+ and many more.

Mac OS X icon

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

Company or developer:
Apple, Inc.

OS X or Mac OS X is Unix-based operating system developed by Apple Inc. for Macintosh computers. It contains basic core applications for everyday use, such as Finder basic file manager, Safari for Internet browsing, QuickTime for video, iTunes for managing audio data and iPod, iOS devices management , iMessage instant messaging, Mail, Contacts, Calendar and many more.

The latest version 10.11 of OS X is called El Capitan. It is available to purchase on Mac App Store as well as is distributed with new Mac computers and notebooks. It includes features to improve the security, performance, design and usability.

OS X operating system was replaced by new macOS in 2016!

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .contents 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 contents file, edit contents file, convert contents file, view contents file, play contents file etc. (if exist software for corresponding action in File-Extensions.org's database).

  • Others contents file

Unspecified and all other actions for computer programs working with contents file - MAC OS X (macOS) data

Click on the software link for more information about macOS. macOS uses contents 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 contents file by default:
macOS small icon macOS
Mac OS X small icon Mac OS X

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