When using the Import Audio command, interleaved stereo files are automatically imported to stereo tracks.

Conversely, split stereo (dual mono) audio files can be automatically imported to stereo tracks. Split stereo audio files must have the channel identifiers “.L” and “.R” in their names (for example, filename.L and filename.R), and the files must be the same length. In Windows, or in Mac/PC Compatibility mode, these files will have a 3-letter file extension appended after the “.L” or “.R” channel identifier.