All about ATT Files

The ATT file type is primarily associated with Alphacam.

ATT	File extension: ATT
	File type:	lathe tool

What is an ATT file?

ATT files mostly belong to Alphacam by Hexagon. An ATT file contains one or more lathe tools used by Alphacam computer-aided design/manufacturing software. A lathe tool file contains control parameters that allow the physical lathe tool on a wood, metal, or stone cutting machine to rotate a workpiece on its axis during milling, facing, or cutting operation. Another type of ATT file contains a waypoint (indeterminate point or place on a route) used by SeeYou and SeeYou Navigator flight planning/analysis programs. An ATT file created by Vissim traffic flow simulation software contains results of a traffic flow simulation.

How to open an ATT file

You need a suitable software like Alphacam to open an ATT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ATT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ATT file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ATT File Viewer

Choose your .att file to view this image

or drag and drop it here

Online File Viewer

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Easily convert ATT files to JPG, PDF, HTML, DOC, ...

You can convert ATT files using our online ATT file viewer (powered by Convert.Guru):

Just click the "Choose your .att file to view this image" button on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then click the file format (e.g. PDF, JPG, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert ATT files:

Alphacam by Hexagon
See the previous paragraphs to learn more about the main application. ATT files are often referred to as Alphacam cads because this type of file is primarily created or used by this software.
7zip (data) by Igor Pavlov
7zip is a data compression and decompression program compatible with windows and Linux operating systems. It can decompress and inspect the contents of an ATT file saved in ZIP compression format. This file format is classified as Compressed.
Acrobat (document) by Adobe
Acrobat is a program for creating, reading, and signing documents saved in Portable Document Format (PDF). It can open an ATT file saved in PDF format. This file format is classified as Data.
Post Data Spider (web form data) by Giuseppe Buttafuoco
Post Data Spider is an obsolete freeware used to collect and view form data submitted on web pages. Form data collected with Post Data Spider and third-party tools are saved in ATT files (usually named POSTDATA.ATT). This file format is classified as Data. Related links: Sublime
SeeYou (waypoint) by Naviter
SeeYou is a flight planning and analysis program for glider pilots. This program is compatible with Windows, iOS, and Android. It saves waypoints in ATT files. This file format is classified as GIS.
Vissim (traffic flow simulation result) by PTV
Vissim is a traffic flow simulation and analysis software. The results of a traffic flow simulation conducted with Vissim is saved in an ATT file. This file format is classified as Data.
XnView (fax message) by XnSoft
XnView is a free image manipulation software for desktop and mobile platforms. It can open fax messages saved in AT&T's Group 4 Bitmap format. This file format is classified as Raster Image.
ZipLip (secure email message) by ZipLip
ZipLip is a discontinued program used to encrypt/decrypt email messages on-the-fly. A message encrypted with this program is saved in an ATT file. This file format is classified as Encoded.

ATT file format details:

To view or edit ATT files you need to know the file format, because it determines how the data in this file is stored. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our examination of the ATT files comes to the following conclusion:

The ATT file extension is used very often and includes a lot of different file formats for different programs. But the following two file formats are common:

15% of all ATT files store the data in the JPG file format. JPEG is the standard image format for lossy and compressed image data. These files contain neither text nor words, but only data. The average file size is 210 KB with most files being between 13 KB and 1 MB in size. The file type was primarily used more than 10 years ago. Several words can almost always be found in the files, e.g. Exif and JFIF.
10% of all ATT files internally utilize the PDF file format. PDF is short for Portable Document Format, is a file format to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The file size is in the range of 23 KB to 15 MB. These files can be linked to axis.

The remaining 75% of all ATT files are files with no common format, such as ZIP, DOC, UTF-8, TIFF, VISION, From and BEGIN. These files are often connected to results, attachment, node, terrain, vehicle, lading or bill. Drag & drop your file here to see the file format and a preview of your ATT file!

Technical Data for ATT File Extension

File classification:

CAD

Related files:

att00001, att000, att00002, htm, att00003, att00004, att000 - copy, att00006, att0002, att1, att00005, txt, att0000, att00007, att3, att4, bin, att0, att0003, att2, ard, alb, aed

Mime type:

text/plain, application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: GraphicsConverterPro.att, FileType: AT&T Group 4, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: UltraEdit.att
EXEFile: Y:\UltraEdit\uedit32.exe %1

ProgramID: XnView.Image
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

ProgramID: ATTfile
EXEFile: %ProgramFiles%\PostDataSpider\postviewer.exe

Show all 4 listings To Top

an att lathe tool is a special file format by Hexagon and should only be edited and saved with the appropriate software.

How to solve problems with ATT files

Associate the ATT file extension with the correct application.
Update your software that should actually open lathe tools. Because only the current version supports the latest ATT file format. Search, therefore, e.g. on the Hexagon manufacturer website after an available Alphacam update.
To make sure that your ATT file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ATT file online - secure, fast, and no downloads needed.