How to make a chart of join/leave times after my meeting

I would like to know if there is some way to see join/leave times in a graph/chart form after my meeting is over. For teachers, this would be extremely helpful. It's often necessary to see when participants first arrived and whether they left early. I know that you can download a spreadsheet of the join/leave times from Reports->Usage Reports on the zoom.us website. However, this data is difficult to read and is not convenient for someone who wants to quickly see when participants joined and left.

Is there such an app that creates a chart of join/leave times for the meeting creator to see afterwards? I created a web extension of my own that does this, but I was wondering if there is something better out there. https://chrome.google.com/webstore/detail/tmshelper/kddbjmggjbbkfkpajcaccfpoonfehhab