.ATTR File Extension

File Type:
iPhoto Attributes File

Having trouble opening .attr extension? Don't panic! This page explains what attr files are as well as suggests programs you may use to open attr files. You can download these programs through this page.

What is an ATTR file?

Attr file extension has iPhoto Attributes file type, developed by Apple, which is associated with the "data files" category.

 iPhoto image editing software with organizer options is responsible for creating files with this extension. They are needed to save image data and created during the editing procedure. Newly created files are placed in the directory where the program is installed. Only iPhoto 2 and earlier versions use this format. iPhoto 4 and later versions of the program gave up the format.


To learn how you can open the given file, read the information below.

attr file icon
File Type:
iPhoto Attributes File
Data Files

How to open ATTR file?

Double click the attr file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .attr extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the attr extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the attr file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open ATTR files

  • MacOS MacOS
    • Apple iPhoto 9.6 Apple iPhoto 9.6

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the attr file as well. Download Universal File Viewer for your OS.

Download for Win
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Download for Mac
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