Greetings!

Most tutorials on this topic will go in the other direction, but I can at least offer some high level advice. I found this, which is a good example of what the process can look like:

https://www.hostingadvice.com/how-to/how-to-move-a-wordpress-site/

The most significant part is the database export, which might be helped with something like this:

https://www.digitalocean.com/community/tutorials/how-to-import-and-export-databases-and-reset-a-root-password-in-mysql

Hope that at least helps to get a sense of what the steps might be for your situation.

Jarland