The as file extension is related to the AppleSingle file format. It is old and obsolete format.

There are 2 other file types using
the AS file extension!

as file icon.as - Applix spreadsheet file

as file icon.as - Adobe Flash ActionScript document

Detailed description

Software that works with as file extension

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AS file extension - AppleSingle encoded file

What is as file? How to open as files?

File type specification:

Various data file type icon Various data file type

as file icon: as filetype icon

Typically, these are given the extension .dat and the MIME-type in the E-mail system is set to properly identify them; however, .as extension is sometimes used. Probably used on older Apple computers and Apple OS.

AppleSingle is file format developed by Apple Computer in order to store Mac OS "dual-forked" files on the Unix filesystem being used in A/UX, Apple's first Unix-like operating system. AppleSingle combined both file forks and the related Finder meta-file information into a single file. Support for the format was later added to Unix software such as NFS and MAE, but they saw little use outside this small market.

Mime: application/applefile

The default software associated to as file type:

Mac OS X icon

Apple, Inc. logo Mac 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 AS files:

Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.

For general information try to look at:
Identifying unknown file formats

How to convert file with extension AS:

Due the variability and uncertainty of this file type group, there is no general information available, about how to convert this various data file format. However most files with extension from this group are usually not in formats, which can be converted. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.

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

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open as file, edit as file, convert as file, view as file, play as file etc. (if exist software for corresponding action in File-Extensions.org's database).

  • Others as file

Unspecified and all other actions for computer programs working with as file - AppleSingle encoded file

Click on the software link for more information about Mac OS X. Mac OS X uses as 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:

Previous file extension
ARV file extension

File-Extensions.org > Various data file types

Next file extension
file extension AS2

 

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