l-w-c: You can just use editors to create an import from scratch.
See
https://questforglory.fandom.com/wiki/Importing#Editor.
It's a good idea to have an editor anyway, because Wages of War (rarely) and Shadows of Darkness (commonly) corrupt their export files (usually because Devon's experience points - a value that is always exported but
never imported - overflow into his spell skills) - yes, 2EGA, 3, and 4 all track Experience even though it's only ever used for 1's monster spawning logic and 5's high score tables. 2VGA at least shows it to you, useless as it is.
In fact, my recent QFG4 playthrough mangled its export file (Ashlander patch in ScummVM) beyond usability, so I rebuilt it with QFGImporter.