How to open A2S files

Did your computer fail to open an A2S file? We explain what A2S files are and recommend software that we know can open or convert your A2S files.

What is an A2S file?

The A2S file extension indicates to your device which app can open the file. However, different programs may use the A2S file type for different types of data.

While we do not yet describe the A2S file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about A2S files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

Generic A2S

These apps are known to open certain types of A2S files. Since many different programs may use A2S files for different purposes, you may need to try a few of the apps to open your specific A2S file.

Emsisoft Anti-MalwareEmsisoft Anti-MalwareUser submitted
a-squared Freea-squared FreeUser submitted
Emsisoft Internet SecurityEmsisoft Internet SecurityUser submitted
a-squared Anti-Malwarea-squared Anti-MalwareUser submitted
Emsisoft Emergency KitEmsisoft Emergency KitUser submitted
Audio2Swf ModuleAudio2Swf ModuleUser submitted
MySQL Migration Toolkit DemoMySQL Migration Toolkit DemoUser submitted
Access-to-MySQL DemoAccess-to-MySQL DemoUser submitted

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

We have not verified any programs that we know for certain can work with A2S-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with A2S-files. If you know one, please use the Suggest link below and tell us about it!