Force the browser to treat the code as a plain text document.
IA vibe coding game question · Issue #8809 · ocornut/imgui - GitHub cpp.txt
This isn't a new file format; it's a clever workaround. Many platforms block the upload of executable or source files (like .cpp or .h ) for security reasons. By appending .txt to the end, developers can: Force the browser to treat the code as a plain text document