An atl file extension is related to the Hal, Supernova, Lunar, LunarPlus applications for Windows.

There are 4 other file types using
the ATL file extension!

empty icon.atl - AutoTap log

empty icon.atl - ATP Assembler source code

empty icon.atl - PROGNOSIS atlas document file

empty icon.atl - Artlantis 3D scene

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ATL file extension - Hal data

What is atl file? How to open atl files?

File type specification:

Various data file type icon Various data file type

The atl file extension is associated with the Hal, Supernova, Lunar, LunarPlus applications for Microsoft Windows that allows blind computer users to read information on the screen.

The atl file stores various data used for internal purposes of Hal and compatible applications.

Updated: March 26, 2019

The default software associated to open atl file:

Dolphin Computer Access Ltd. logoHal  Microsoft Windows software

Company or developer:
Dolphin Computer Access Ltd.

Hal was a software used for screen reading meant for blind computer users. It looks like it was discontinued years ago.

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 .atl 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 atl file, edit atl file, convert atl file, view atl file, play atl file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with atl file - Hal data

Click on the software link for more information about Hal. Hal uses atl 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.).

Microsoft Windows:

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