ATTR file format description

Many people share .attr files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .attr file can be edited, converted or printed with. On this page, we try to provide assistance for handling .attr files.

1 filename extension(s) found in our database.

.attr - Apple iPhoto Image Attributes

The ATTR data files are related to Apple iPhoto. The ATTR file is an Apple iPhoto Image Attributes. iPhoto is a digital photograph manipulation software application developed by Apple.

Application:

Apple iPhoto

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Apple iPhoto Image Attributes related extensions:

.savedsearch: Mac OS X Spotlight Saved Search
.aedt: ANSYS Electronics Desktop Data
.ocm: AOL Advertising Control Data
.vsg: Anritsu Vector Signal Generator Data
.afz: Ancestry.com Family Tree Database Backup
.aft: Ancestry.com Family Tree Database

Naturally, other applications may also use the .attr file extension. Even harmful programs can create .attr files. Be especially cautious with .attr files coming from an unknown source!

Can't open a .attr file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

example.attr

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .attr file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

atr, att, ttr

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.att: AT&T Group 4 Bitmap Image
.att: Alphacam Lathe Tool Data
.atr: SIO2PC Atari Disk Image
.atr: Lightscape Material File
.att: ZipLip Secured E-mail Message
.atr: PhysioBank Annotation File

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-attr-files

If you have useful information about the .attr file format, then write to us!