Macro for Protecting Sheet (with same name) on multiple files at once?

Hello Excel Geniuses!

I have received so much help from this community I hope someone can help me with this request.
I have a macro that duplicates a excel file into how ever many files I need... so If I need 150 copies of the the file, it will make it 150 times.

However, each file the first tab called "Clients" has information that I want protected so users can't alter it.
I can't protect it before I run the duplication because the data is added by a group of people and I need it unprotected until they add the information.

What I am looking for is a macro that I can click and run, allows me to select multiple files, then it will automatically Protect Sheet 1 "Clients" on all the files I select so I don't have to open all 150 files after data is entered and Protect sheet 1 manually.

Anyone know how to do something like this?
I would greatly appreciate your help!!!

Even with code you'll still need to open all the files to protect them or protect the sheets in them.

Right, I guess I am looking for a code that will open all the files I select one at a time, protect sheet 1 (Clients), close the file, then move to the next one.
I have a "Combine" macro that does something similar to this... it allows me to select multiple files, it opens them one at a time, copies and pastes data from them into a "Master" sheet and then closes them.
This is that code:

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I guess I was hoping for a code that could do something similar for locking multiple files... It may not be possible, but I thought I would check with the experts.

Why not add code set the protection to the code that creates the duplicate files?