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ATTR File Extension

ATTR file extension is created by Apple, also known as iPhoto Attributes File. ATTR has been classified as Data Files. The format of this file type has not been determined yet. You can open ATTR files in Apple iPhoto program.



iPhoto Attributes File Type

iPhoto Attributes File Type
Extension .attr
Developer Apple
Popularity 5.0 (7 Votes)
Mime Type mime-type/not.available
Default Program Apple iPhoto
Category Data Files
Format Not Available
Updated 11/1/2024

What is a ATTR File Type?

The files are located under-folders of the iPhoto program.

Used by iPhoto 2 and earlier, not used by iPhoto 4 and later. iPhoto was discontinued and replaced by Photos in 2015.



Free online ATTR Tools & Apps

We have also the free online .ATTR (iPhoto Attributes File) file extension apps that can allow to view, edit, convert from to ATTR, merge, split and compare the ATTR files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.



ATTR Files Common Issues

There are few common issues with the iPhoto Attributes File .ATTR File Extensions while opening the .ATTR files on Windows and MacOs, we have solution to those issues such as:

Can't Open ATTR Files?

  1. You must have supported software programs installed for iPhoto Attributes File on your system such as Apple iPhoto.
  2. Associate default Apple Apple iPhoto program for *.attr (iPhoto Attributes File) files.


    Associate ATTR Default Program on MacOs
    1. Click *.ATTR (e.g example.attr) file and click information -> Open With.
    2. In the programs list, click Apple Apple iPhoto program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .Apple iPhoto extension. By clicking Continue you confirm your selection", click Contine to apply changes.


All Platform Software Programs for ATTR File Extension

List of all softwares that can open the ATTR files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open ATTR File on Windows

Software License Developer

MacOs logo image - FileProInfo.comOpen ATTR File on Mac OS

Software License Developer
Apple iPhoto image. Apple iPhoto 9 for MacOs Bundled Apple

Linux logo image - FileProInfo.comOpen ATTR file on Linux

Software License Developer

Website logo image - FileProInfo.comOpen ATTR file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen ATTR file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen ATTR file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

ATTR file extension icon image.About ATTR - iPhoto Attributes File

FileProInfo is to help you understand about the iPhoto Attributes File with *.ATTR suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for ATTR. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for ATTR, please let us know.

Updated 11/1/2024


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