Does git create files/folders in the project tree?

Does git create any files/folders (hidden?) in the project tree at all?

If so, is there a way to export all the raw files and not git related files?

Git creates a single .git directory in the root of the project. You can create additional git-specific files like .gitignore and .gitmodules, but by default only the .git directory will be present.

There are many ways to 'export' your project; simply deleting the .git directory is probably the simplest.