Convert ALS to WAV

You shouldn't face any issues trying to convert Ableton Live Set Files directly to WAVE Audio Files (.als to .wav conversion), as such conversion is not only possible, it's also fairly simple. 

You are, however, limited to using the original software, since ALS is a proprietary file format, and there are no available third-party programs capable of converting ALS to WAV.

Ableton Live will allow you to export its ALS live sets in WAV format.