For txt, I let it stay similar format to the msg tool. That means one lang one txt file. For csv, I put all the languages into one file, with the msg entry name, its guid, and attributes. I think this ...
The magic way: Just ask your AI to create PDF documents with diagrams. The AI will automatically write beautiful documentation and convert it to PDF for you.
Once installed, the application opens directly to the OST selection screen, which is exactly what you want in a recovery tool.