ALS File - opening and understanding

Did your computer fail to open an ALS file? We explain what they are used for and recommend software that we know can open or otherwise handle your .ALS files.

What is an ALS file?

An .ALS file is a MPEG-4 ALS (Audio Lossless coding Standard) file. These ALS files contain audio in Audio Lossless Coding Standard format, which is a part of the MPEG-4 Part 3 standard. These ALS files combine short and long-term predictors to improve the compression for sound with rich harmonics.

How to open ALS files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension ALS for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 9 different ALS openers which you will find listed below.

Other file formats using extension .ALS

While MPEG-4 ALS (Audio Lossless coding Standard) is a popular type of ALS-file, we know of 2 different uses of the .ALS extension.

The ALS file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So an ALS opener may not be able to open all kinds of ALS files. In this case, look through both formats to make sure you find the best suited ALS viewer.

Psion serie 3 Application Alias

Through our analysis of ALS files, we know that one use of the format is Psion serie 3 Application Alias. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

While we have not verified the apps ourselves yet, our users have suggested 9 different ALS openers which you will find listed below.

Various viewers for this file format

These apps are known to open certain types of ALS files. Remember, different programs may use ALS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

fcheckfcheckUser submitted
GIMPGIMPUser submitted
LogicAnalyzer ApplicationLogicAnalyzer ApplicationUser submitted
XnViewXnViewUser submitted
Synergis AdeptSynergis AdeptUser submitted
FemtetFemtetUser submitted
AusLogics Visual StylerAusLogics Visual StylerUser submitted
Artworks BasicArtworks BasicUser submitted
AQUATOXAQUATOXUser submitted
We have not verified any software that we know for certain will work with ALS-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with ALS-files. If you know one, please use the 'Suggest a program' link below and tell us about it!