Have you tried Onlyoffice? They use MS format as their defaults and promise good compatibility. They use JavaScript in their macros though, and their official r

Have you tried Onlyoffice? They use MS format as their defaults and promise good compatibility. They use JavaScript in their macros though, and their official recommendation is to convert them manually - so it's not a drop-in replacement. Or if you looked at Google Docs, how about Microsoft's online editors? Unfortunately, again, no macro support.