Yes. To export all the files in a given project as unprocessed .wav files tap on the three dots next to the project name in the Project list view, tap Share/Export, then Export Multitrack. (You can also us the Share up arrow icon in the lower right corner of the Edit screen.)
Each audio recording in the project will be exported with no effects applied. The export will be a zip file named with the name of your project.
For video exports, in addition to the audio files for each track, there will also be a .mov video file.