Deconverting a project in the newest version to version 1 (All Windows)

[AmberV]

Here is what you are looking for:

Cross-Platform Use

The File ▸ Export ▸ as Scrivener 1/2 Project... menu command (the Win|Mac numbering is different in the menu command, but both refer to the same format with regards to compatibility), creates a project that requires at a minimum, Scrivener 2.7 on macOS, and 1.9.5 on Windows/Linux. That said, so long as your Mac can upgrade to at least macOS 10.14,[1] then you can run v3 on your old Mac, which will be compatible with the latest version for Windows, too—what you’d be getting with the bundle. If…

I’ve moved this to general Scrivener discussion since either platform can “downgrade” a project, and may have reason to.