File extension .A2L
Full Name | Developer | Category |
---|---|---|
ASAP2 Description Format | ASAM MCD-2MC | CAD Files |
For example:
- File Extension 1
- File Extension 2
- File Extension 3
- <.
The A2L file extension is used for an ASAP2 for ECUs (Engine Control Unit) Description File. The A2L file format contains the software component description for ECUs produced by Vector Informatik GmbH. The file is typically stored in proprietary format used by Vector CANape, allowing users to define descriptions of their software component measured values. It is written in ASCII and formatted according to ISO-8859 encoding. A2L files are used in automotive engineering and embedded systems development.
Similar File Extensions
Similar file extensions could include:
Technical Details
A2L files are part of the ASAP2 suite, and performs the same functions as its predecessor, the ASAP1 file format. The A2L format consists of a header block, followed by a series of blocks that describe the various components present in an ECU. For each component, there is a definition containing constants, characteristic curves or tables, checksums and other elements required to characterize this system. In addition to their primary purpose, they are also used extensively in the automotive industry for diagnostics, calibration and updating of ECU software.
Programs for WINDOWS system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .A2L) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .A2L extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .A2L file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .A2L extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .A2L extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .A2L file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .A2L file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .A2L file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .A2L file) will be extended to the maximum.
It is also good to check
- if the .A2L file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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