Viewing sound waves in excel?

You would need some other applications to first extract the audio track, then convert the audio track of the video into data. Excel cannot do any of that.

First you have to extract the audio. There are free web sites that allow you to convert YouTube videos to MP3 files. This may violate YouTube user agreements so I am not going to provide links here.

Once you have an audio file you can use a tool like Audacity, which is a free audio editor. It shows you a volume trace over time that would allow you to see timing of audio events graphically.

If you need to do further analysis of those events you can enter them into Excel by hand. I do not know if Audacity, or any other tool, provides an export to some other data format that can be used by Excel.