

Yes, I know about them and always prove extremely useful every time I receive a file with a wrong/no extension and have little clue about its content. But since the question was about how OP could work with “files with extensions” produced in Windows, I wanted to help clarify what are they, why they are used and that files do not need to be converted or whatever to be opened in Linux as it can “work with them” just fine.
https://web.archive.org/web/20250530225533/https://brobible.com/culture/article/ai-company-builder-bankrupt/