How to load old iTunes libraries into Music app on MacBook Pro running macOS Tahoe?

I am running Tahoe 26.1 (25878) on my 2020 13 inch MacBook Pro and I have come across several old iTunes Library files from 2009 to around 2014 on some old backup external drives and I would like to review them for some old playlist that have some sentimental value to me.

I tried to start Music with the Option button to try and Create Library and I picked the .itl file from the backup but got this message: “iTunes Library.itl” does not appear to be a valid library. Please choose a different library.

Is there a way to get these older iTunes libraries to be loaded so I can review them or is there a tool that would let me review the contents of a specific playlist created only in these older libraries as I am hopeful to find an older playlist I lost track of?

Thank you in advance for any help someone can offer me.

[Re-Titled by Moderator]

Original Title: Help with “iTunes Library.itl” does not appear to be a valid library. Please choose a different library. message trying to load old iTunes library into MacBook Pro Music running Tahoe