Comment by telotortium

I have a skill that instructs ChatGPT/Codex to verify the rendering using the Mac versions of Microsoft Office. Even without registering, you still can open files read-only, which is enough. Apparently Office refuses to open some Open Office XML documents that LibreOffice is fine with, so that's another reason to use this. After a few times, Codex ended up storing some memories to stop producing broken files in the first place.

I generated the skill originally for ChatGPT 5.5, so some of these may not strictly be necessary anymore with later models. But posting here in case others find it useful: https://gist.github.com/telotortium/844386f762c4b3bab49999ba...