Why Are There All These Extra Little Files For Sub Galleries?

Whenever I upload a folder with folders in it for sub galleries I get a bunch of duplicate 4k files that also upload.  Is this normal? Why is this doing this?  Is there something I need to change somewhere? 

I'm working on Apple OS 14.6.1

I don't use Apple products, but that is something Apple does. I don't know if there is a way to disable creating those extra files.

Is there a better way to delete them in mass than having to click on each one individually?  What would be the best method to do that on the back end?

I did notice that it also sometimes happens when I upload multiple folders to Google Drive.

Thanks!

In your file viewer, you could sort them by size so all of your small files are together. Then select and delete.

It would probably be easier to delete the uploaded photos, delete those files unwanted files from your computer then re-upload. 

The problem is I only see them when I upload them as folders.  I don't see them on my computer at all.

See if this helps: 

https://www.google.com/search?q=apple+mac+show+hidden+files

I found something on the internet that said that if I was uploading from an external drive "they are created by OSX to store extended attributes when the files are on a filesystem that doesn't support OSX extended attributes." 

So I transfered the files to upload from the external drive to my desktop and uploaded from there and had no problem with the extra files.