There’s a way to disable the shortcuts so they can be remapped: https://github.com/midrare/hyperenable
It basically runs and creates the same global hotkeys as explorer.exe would for those Office ones, but it does so right before explorer launches so it can’t assign them anymore. After that, the program disables them so you’re free to use the hotkeys for other programs.
You could define a function that takes a parameter, which touches a file with the parameters value, chmods it and then opens it with nano?
create_exec() { touch "$1" chmod +x "$1" nano "$1" }
Then you could type
create_exec file.sh
and it would do the rest for you.