An atr file extension is related to the SIO2PC Atari Disk Image format used to store data from Atari 8-bit computers.

There are 5 other file types using
the ATR file extension!

empty icon.atr - MicroSim PCBoard attributes report

empty icon.atr - Stanford Microarray Database array tree file

empty icon.atr - ZX Spectrum attributes

empty icon.atr - Autodesk Lightscape material data

empty icon.atr - PhysioBank annotation

ATR file extension - Atari 8-bit disk image

What is atr file? How to open atr files?

The atr file extension is used for Nick Kennedy's SIO2PC Atari Disk Image format.

The atr format is standard disk image, used by APE, SIO2PC, and all Atari emulators. There are minor differences in the header use between these programs, but the images remain compatible regardless of what program they are created with.

This atr file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

The default software associated to open atr file:

Xformer 2000 picture or screenshot

Xformer 2000  Microsoft Windows software

Company or developer:

Xformer 2000 is emulator of 8-bit Atari computers (Atari 400/800, Atari 800XL, Atari 130XE) for Microsoft Windows. Now you can simply click with the mouse to configure Xformer’s options. Turn sound on and off, turn joysticks on and off, change modes, even install Atari 8-bit disks all using the mouse.

Help how to open:

Use Xformer 2000 to open *.atr disk images.

How to convert:

Use compatible tools to export *.atr files to other formats.

Related links:

Atari disk images

Emulator Zone website

List of software applications associated to the .atr 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 atr file, edit atr file, convert atr file, view atr file, play atr 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 atr files.

Software that open atr file - Atari 8-bit disk image

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

Microsoft Windows:

Main software associated with atr file by default:
Xformer 2000
Other suggested software:
ZipZag small icon ZipZag

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