An appledouble file extension is related to AppleDouble file system introduced in Apple A/UX system.

Detailed description

Software that open appledouble file

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APPLEDOUBLE file extension - Apple AppleDouble resource data

What is appledouble file? How to open appledouble files?

File type specification:

System file type icon System file type

The appledouble file extension is associated with the AppleDouble file format introduced with the first Apple Unix operating system called A/UX.

AppleDouble is similar to AppleSingle file format. However AppleSingle contains resources and data in one single file and AppleDouble in two separate files.

AppleDouble resources part with Finder meta-data has .appledouble file extension and data part is stored in original file format with original file extension. AppleDouble format is better for transport data through Internet, because non-Mac users can open the original file without other decoding like AppleSingle format.

AppleDouble file format is still supported by the Mac OS X. It is used to store Finder meta-data on drives with file systems that don't support resource forks, such as NFS and WebDAV.

Mime types:

Updated: May 6, 2024

The default software associated to open appledouble file:

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.

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 software applications associated to the .appledouble 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 appledouble file, edit appledouble file, convert appledouble file, view appledouble file, play appledouble file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting appledouble files.

Programs that can create appledouble file - Apple AppleDouble resource data

Programs supporting the exension appledouble on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for create appledouble file action.

Apple macOS / Mac OS X:

Main software associated with appledouble file by default:
macOS small icon macOS
Mac OS X small icon Mac OS X

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