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Basic information about A2L file

When there is a problem with opening files with the file extension A2L（*.A2L or *.a2l）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the A2L file yourself.

There are 1 file types using the A2L file extension in our database. In the further part of this page, you will find detail information about all the A2L file with their brief description and a list of programs that support A2L file sorted by operating systems. The table below provides useful information about the A2L file extension. It answers questions such as:
  • What is the A2L file?
  • How to open a A2L file?
  • What programs do I need to open a A2L file?
  • What programs help to create and edit a A2L file?
  • How to convert A2L files to another file format?
  • How to convert another files to A2L file format?


1.Detail information about A2L file extension: ASAP2 ECU Description File

File type ASAP2 ECU Description File Category CAD Files
Developer ASAM MCD-2MC File format Text
Description A2L file is a ASAP2 ECU Description File developed by ASAM MCD-2MC. Standard file format specified by the ASAM MCD-2MC (ASAP2) workgroup; describes the interfaces, measurements, and parameters of an Electronic Control Unit (ECU), an electronics component that is used to control various parts of a motor vehicle; helps in the process of transforming an ECU model design into a physical ECU; also helps in the process of calibrating and testing the ECU.
Software programs that will open, edit or convert A2L files

Windows		 File Viewer Plus
AVL CRETA Calibration Data Management
HEXplorer
NI ECU Measurement and Calibration Toolkit
ASAP2 Editor



Can't open a A2L file?

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

”Can't open this file: example.A2L”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the A2L extension without any issue.


Where I can download the application that support A2L file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of A2L files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a A2L file?

The reasons for the lack of the ability to open a A2L file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a A2L file. If there is still something wrong, you might want to check:

  • Whether the A2L file is damaged.
  • Whether the A2L file is incorrectly linked in the registry entries.
  • Whether the A2L file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the A2L file format is incompletely.
  • Whether the A2L file is infected.
  • Whether the drivers of the equipment used for opening a A2L file are up to date.
  • Whether your computer has enough hardware resources to open a A2L file.

If the A2L file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.