Working on an older site with about 80ish pages and 300+ posts. All of it was created using ACF Pro then wired into a custom theme written from the ground up (or at least extremely customized). We now want to go back to native WP. I've seen a few posts in here about going from Gutenberg to ACF, but not the other way around.
Are there any tools/plugins to accomplish this or am I stuck with exporting all posts as a csv, cleaning it up, then reimporting it then touching each page and post to clean them up by hand?
I don’t think you’re going to find any tools to do what you want. You’re most likely going to have to rebuild everything manually.
Out of interest, what’s your reason for doing this?
I admit I hate Gutenberg and still use ACF Pro, but I realise not everyone feels the same way.