Unable to open .mp4 file from Adobe Podcast project

For my latest project I exported the original recordings: “Felix __ Shane talk bikes and Kidical Mass (original recordings) (1).zip”  I unzip the file Shane Rhodes.mp4, but the file is corrupted and unable to be opened. The work around is that I can download the audio WAV file for the interview just fine. But we need separate files to work with. Can you please help me get access to a working audio file of JUST my interviewee Shane Rhode’s recording?