How do I transfer files from my Xbox One S to my PC?

to my knowledge impossible, you could always try the minecraft forums over as mojang as the forums there cover both java and bedrock editions.

Thanks for the answer, bit of a let down but thanks for informing me. Would there be any alternative way of transferring the world or is it just impossible?

you cant access the files on the one S, you cant even transfer the world from xbox to pc, you will have to create a brand new world and host this from your server, i had to do the same so i now run a minecraft server for my kids that is always there when
they want to use it, remember to create daily backups of the servers files.

That game doesn't support cross saves, so you can't transfer the save between the two versions.

I did this, it is not working.

For 4 days all I get on the PC is "Cannot Connect To Realms"

Then when it does finally connect. I get this message "You Need To Authentic To Microsoft Services"

I am logged in to my account, what else do I need to do?