I'll be honest, I haven't done much with this. I've included LINKS to videos on YouTube in my spreadsheets before, but it seems like such an inefficient way to store video. Since most people are "connected" today, a link to a YouTube video works perfectly.

How are you embedding them? There are a couple of different methods.

I go into Developer the hammer Icon select Windows Media Player.  then choose properties within the frame and brows and select the file to play.  If I position the frame to the very top, it keeps it small but if i move it away from it, the video is big.  I want to embed these because the file are training videos on how we measure parts in manufacturing.  This would aid a tester for additional instructions.  You tube  would be unnecessary and unsecure.  I can do this in Access but i'd like to know how in Excel

Yeah I haven't done that in YEARS. I'd have to play with it to be of any help. You can make YouTube videos private and only give specific people access to them. That's what I'd recommend, unless you want people to be able to view these offline (like on a plane).

You could create a VBA form and display it in that, just have a button that opens/loads it in. Then that form could be positioned where-ever you want.

Can you show me how to do this in Excel?  I can do this Access.  I would like to see more tutorials in Excel utilizing VB Code

I've got a series of Excel VBA courses planned. Hang in there. :)