ATT file format description

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

3 filename extension(s) found in our database.

.att - AT&T Group 4 Bitmap Image

The ATT file is an AT&T Group 4 Bitmap Image.

Application:

Category:

Graphic files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

AT&T Group 4 Bitmap Image related extensions:

.att - Alphacam Lathe Tool Data

The ATT data files are related to Alphacam. The ATT file is an Alphacam Lathe Tool Data. Alphacam is a leading CAD/CAM software solution for the Woodworking industry.

Application:

Alphacam

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Alphacam Lathe Tool Data related extensions:

.adb: Alphacam Diecut VB Macro
.add: Alphacam Diecut Drawing
.adm: Alphacam Diecut Param Macro
.adp: Alphacam Diecut Post Data
.adt: Alphacam Diecut Tool Data
.aeb: Alphacam Wire EDM VB Macro

.att - ZipLip Secured E-mail Message

The ATT data files are related to ZipLip. The ATT file is a ZipLip Secured E-mail Message. ZipLip is a program used to encrypt/decrypt email messages on the fly. The ZipLip seems to be no longer supported.

Application:

ZipLip

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

ZipLip Secured E-mail Message related extensions:

.tal: Adobe TypeAlign Text Illustration
.enlx: EndNote X Compressed Library Data
.xmm: Autodesk 3D Studio MAX XML Animation Map
.rat: AutoCAD Civil 3D Rational Method Data
.ang: AIMSUN NG Data
.obv: 3D Photo Browser Thumbnail Cache

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

Can't open a .att 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.att

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 .att file extension is often given incorrectly!

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

aft, agt, aht, art, at, atf, atg, ath, atr, aty, ayt, qtt, tat, tt, wtt

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.art: C64 Advanced Art Studio Image
.art: Atari ST Art Director Image
.ayt: Ayat Data
.atf: ASAM Transfer Format XML Data
.art: Atari ST GFA Artist Image
.art: Atari 8-bit Ascii-Art Editor Image

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-att-files

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