AAT File Extension

What is AAT file?

AAT is a file extension commonly associated with ArcInfo Line Data files. ArcInfo Line Data specification was created by Esri. AAT files are supported by software applications available for devices running Windows. AAT file belongs to the Misc Files category just like 6033 other filename extensions listed in our database. The software recommended for managing AAT files is ArcInfo. On the official website of Esri developer not only will you find detailed information about theArcInfo software, but also about AAT and other supported file formats.

Programs which support AAT file extension

Below is a table that list programs that support AAT files. Files with AAT suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with AAT extension?

Problems with accessing AAT may be due to various reasons. Fortunately, most common problems with AAT files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the ArcInfo

The main and most frequent cause precluding users form opening AAT files is that no program that can handle AAT files is installed on user’s system. To address this issue, go to the ArcInfo developer website, download the tool, and install it. It is that easy On the top of the page a list that contains all programs grouped based on operating systems supported can be found. One of the most risk-free method of downloading software is using links provided by official distributors. Visit ArcInfo website and download the installer.

Step 2. Verify the you have the latest version of ArcInfo

If the problems with opening AAT files still occur even after installing ArcInfo, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of ArcInfo is available. Software developers may implement support for more modern file formats in updated versions of their products. The reason that ArcInfo cannot handle files with AAT may be that the software is outdated. The latest version of ArcInfo should support all file formats that where compatible with older versions of the software.

Step 3. Associate ArcInfo Line Data files with ArcInfo

If you have the latest version of ArcInfo installed and the problem persists, select it as the default program to be used to manage AAT on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Change the default application in Windows

• Clicking the AAT with right mouse button will bring a menu from which you should select the Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where ArcInfo is installed. Now all that is left is to confirm your choice by selecting Always use this app to open AAT files and clicking OK.

Change the default application in Mac OS

• By clicking right mouse button on the selected AAT file open the file menu and choose Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select ArcInfo and click Change for all...
• Finally, a This change will be applied to all files with AAT extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the AAT for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper AAT file. It is probable that the file is corrupted and thus cannot be accessed.

1. The AAT may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the AAT file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. AAT file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the AAT file’s structure is intact

If you obtained the problematic AAT file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with AAT extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the ArcInfo Line Data file.

4. Make sure that the system has sufficient resources to run ArcInfo

If the system is under havy load, it may not be able to handle the program that you use to open files with AAT extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with ArcInfo Line Data files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle AAT files.

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