When I click browse to search for the data, my data won't show up?
When you open your USB drive with file explorer, do you see this folder?

No that folder isn't showing up, nothing is showing up apart from pictures ect that's on my USB.
Put it on your xbox and see if it shows your save there
EDIT: If it shows there then put your USB on your PC, open file Explorer and open your USB drive. Go to "View" on the top

Now click "show/hide" and click on "show hidden files" here

It should show now
I have literally copied this step by step and it still won't work... I don't know what is going on but it's really starting to annoy me.
Ok, I don't know if this is going to help but try anyway
Go to your USB, right click it and go to properties
Look at file system and see if it's FAT32

If it's not FAT32, make a backup of your USB and format it to FAT32

Then put your Total Miner Data on your USB and see if it works
If it doesn't work or your USB is already FAT32 then the last thing to do is to use Horizon
Horizon will let you see your save but I don't recommend it because Windows Defender and other antivirus dectect it as a virus (Probably because it's full of adware)